Determining the critical value of F For each of the following situations, state how large the F statistic needs to be for rejection of the null hypothesis at the 0.05 level, (a) Compare 3 groups with 5 observations per group. (b) Compare groups with 4 observations per group. (c) Compare groups with 8 observations per group. (d) Summarize what you have learned about F distributions from this exercise_
Answers
The critical value (Using FDIST(0.05, 2,9)) = 3.356
Therefore F statistic should be \(\geq 3.356\)
How to solve(a) k = number of columns = 5, n = 3,. Therefore N = 15
df1 = k - 1 = 4
df2 = N - k = 15 - 4= 11
The critical value (Using FDIST(0.05, 2,9)) = 3.356
Therefore F statistic should be \(\geq 3.356\)
_________________________________________
(b) k = number of columns = 5, n = 5,. Therefore N = 25
df1 = k - 1 = 4
df2 = N - k = 25 - 4 = 21
The critical value (Using FDIST(0.05, 4,21)) = 2.758
Therefore F statistic should be \(\geq 2.758\)
_________________________________________
(c) k = number of columns = 5, n = 7,. Therefore N = 35
df1 = k - 1 = 4
df2 = N - k = 35 - 4 = 31
The critical value (Using FDIST(0.05, 4,31)) = 2.678
Therefore F statistic should be \(\geq 2.678\)
_________________________________________
(d) Summary:
(i) As the sample size increases, the critical value decreases, and therefore a smaller F statistic is required to reject the null hypothesis.
(ii) Keeping k constant and increasing n, decreases the critical value and
(iii) Keeping n constant and increasing k, will also decrease the critical value.
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Related Questions
MTH208 Graded Assignment Unit 5 Test, Part 2. Relationships of Right Triangles, Including Trigonometry
(Score for Question 3:
of 5 points)
3. What are the exact measures of the other two sides of the triangle? Use special right triangles ratios and
show your work
А
30
14 cm
B
Answer:
PLEASE HELP do. Not comment just to get points.
Answers
Answer: 14 cm
Step-by-step explanation: A right triangle is an isosceles triangle.
may you pls help me i do not know how to do it
Answers
Answer: 118
Step-by-step explanation:
The two figures' angles are identical so the angles would have the same measurements
Make x the subject 2y+3=5x-18
Answers
Answer:
x=2/5 y + 21/5
Step-by-step explanation:
Hope the answer help
Select the correct answer from each drop-down menu.
The total area of the three triangles is
square units.
The area of the figure is
square units.
Answers
The total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
What is the triangle?The triangle can be defined as a three-sided polygon in geometry, and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.
From the figure, the area of triangles can be calculated using the:
Area = (1/2)height×base length
Area of three triangle = 1/2(4×6) + 1/2(6×4) + 1/2(4×6)
Area of three triangle = 1/2(24×3) = 36 square units
Area of the figure = area of three triangle + area of the rectangle
= 36 + 6×4
= 60 square units
Thus, the total area of the three triangles is square units is 36 and the area of the figure is square units is 60.
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{20 PTS}
4/6 = ??? x 1/6
what number makes this equation true? fill in the blank
Answers
Hope this helps :)
tan sin^-1(-1/2)+tan^-1(3/4)
exact value!
Answers
Answer:
m
Step-by-step explanation:
vfmjj vdzaazb knkuvggb
A person's heart rate is 65 beats per minute at rest. It increases by 12 beats per minute for each of
the first 10 minutes of exercise. What is the person's heart rate after 6 minutes of exercise?
Answers
find the volume of the figure
Answers
The volume of the figure is 2104. 80 m³
How to determine the volumeThe formula that is used for calculating the volume of a cylinder is expressed as;
V = πr²h
Such that the parameters given of the equation are;
V is the volumer is the radiush is the heightUsing the Pythagorean theorem, we have that;
d² = 282. 24
d = √282. 24
d = 16. 8
Bur r = d/2 = 8. 4m
Substitute the values
Volume = 3.14 × 8.4² × 9. 5
Multiply the values, we get;
Volume = 2104. 80 m³
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Solve the following quadratic equation for all values of x in simplest form. 4(3x - 5)/1+5 = 13
(Will give brainly)
Answers
To find :
The value of x.Solving the equation :
\( \longmapsto \sf { \dfrac{4(3x-5)}{1+5} = 13} \)
\( \longmapsto \sf { \dfrac{12x-20}{6} = 13} \)
\( \longmapsto \) 12x - 20 = 6 × 13
\( \longmapsto \) 12x - 20 = 78
\( \longmapsto \) 12x = 78 + 20
\( \longmapsto \) 12x = 98
\( \longmapsto \) x =\( \sf { \dfrac{98}{12} } \)
Divide the numerator and the denominator in R.H.S by 2.\( \longmapsto \bf\red { x = \dfrac{49}{6} } \)
Value of x is 49/6.
Answer:
\({\boxed{\sf{\gray{x = \dfrac{49}{6}}}}}\)Step-by-step explanation:
\({\underline{\underline{\bf{\red{\:\:\:Given\: Equation\:\:\:}}}}}\)
\(\mapsto\:\:\sf{\dfrac{4(3x-5)}{1+5}=13}\)
We need to find the value of x in the given equation.\({\underline{\underline{\bf{\blue{\:\:\:Solution\:\:\:}}}}}\\\\\)
______________________\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\red{\dfrac{4(3x-5)}{1+5}=13}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\orange{\dfrac{4(3x-5)}{6}=13}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\green{\dfrac{2(3x-5)}{3}=13}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\blue{\dfrac{6x-3}{10}=13}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\purple{6x-10=39}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\red{6x = 39+10}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:\sf\blue{6x = 49}\)
\(\\\)
\(\qquad:\longrightarrow\:\:\:\:{\underline{\boxed{\sf{\purple{x = \dfrac{49}{6}}}}}}\)
\(\\\)
______________________
Shapes A and B are similar.
a) Calculate the scale factor from shape A to shape B.
b) Find the value of w.
Give each answer as an integer or as a fraction in its simplest form.
Answers
From this:
7(3/4)= 21/4
This is because we multiple the ratio with one of the side to get from a to b.
Please like and brainiest if helpful!
The scale factor from shape A to shape B is 0.75 with w = 5.25 cm.
What is scale factor?The size by which the shape is enlarged or reduced is called as its scale factor.
Scale factor from shape A to shape B = \(\frac{3}{4}\) = 0.75
It can be calculated by dividing the length of one side of the polygon to the corresponding side of the similar polygon. Keep the length of the side of the original figure in denominator and length of the side of the transformed figure in the numerator.
Calculating w.
\(\frac{w}{7} = 0.75\\\\w = 7 * 0.75 = 5.25\)
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What is the image point of (-6, -3) after the transformation R90 degrees r y=-x?
Answers
Given the point (-6, -3)
We will find the image of the point after the following transformation:
\(R_{90}\circ r_{y=-x}\)So, first, we will find the image of the reflection over the line y = -x and then apply the rotation of 90°
The rule of the reflection over the line y = -x will be as follows:
\((x,y)\to(y,-x)\)Apply to the given point:
\((-6,-3)\to(-3,6)\)Then, we will find the result after the rotation of 90
the rule of the rotation will be as follows:
\((x,y)\to(-y,x)\)Apply to the point (-3, 6)
\((-3,6)\to(-6,-3)\)So, the answer will be (-6, -3)
An office manager orders one calculator or one calendar for each of the office's 60 employees. Each calculator costs $15, and each calendar costs $10. The entire order totaled $800.
Part A: Write the system of equations that models this scenario. (5 points)
Part B: Use substitution method or elimination method to determine the number of calculators and calendars ordered. Show all necessary steps. (5 points)
Answers
The system of equations is.
\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)
And the solutions are y = 50 and x = 10.
How to write and solve the system of equations?Let's define the two variables:
x = number of calculators.y = number of calendars.With the given information we can write two equations, then the system will be:
\(\begin{cases}\text{x}+\text{y}=60 \\15\text{x}+10\text{y}=800 \end{cases}\)
Now let's solve it.
We can isolate x on the first to get:
\(\text{x} = 60 - \text{y}\)
Replace that in the other equation to get:
\(15\times(60 - \text{y}) + 10\text{y} = 800\)
\(-2\bold{y} = 900 - 800\)
\(-2\bold{y} = 100\)
\(\text{y} = \dfrac{100}{-2} = \bold{50}\)
Then \(\bold{x=10}\).
Therefore, the solutions are y = 50 and x = 10.
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what is the meaning of sequence in mathematic and
Answers
Answer:
A list of numbers or objects in a special order. Example: 3, 5, 7, 9, ... is a sequence starting at 3 and increasing by 2 each time.
Step-by-step explanation:
Given that polygons ABCD is similar to KGHJ Set up a proportion and solve for X
Answers
Answer:
9
Step-by-step explanation:
3/16=x/48
cross multiply
16x=48*3
16x=144
x=9
Please answer this correctly I want genius expert or ace people to answer this correctly as soon as possible as my work is due today
Answers
Answer:
25%
Step-by-step explanation:
The last percentile always contains 25% of the observations.
What is 5+5? Please help the lol
Answers
Answer:
10
Step-by-step explanation:
5+5=10
your answer is 10
Answer:
10
Step-by-step explanation:
1+1= 2
1+1 = 2
2+2= 4
4 + 1 = 5
5 + 5 = 10
I need to multiply 10,170 by 0.775
Answers
Answer:
7881.75
Step-by-step explanation:
10,170x0.775
Answer:
7881.75
Step-by-step explanation:
A bus driver drives 6 miles a day how many miles does the bus driver drive in 5 days?
Answers
Answer:
The bus driver drives 30 miles in 5 days.
Step-by-step explanation:
Hi,
You can use the rule of three to solve this problem.
For the first step, we need to analyze the information given:
\(6 (miles) = 1 (day)\)
and we want to know how much miles the bus driver drives in 5 days:
\(x (miles) = 5 (day)\)
Thus,
\(6 (miles) = 1 (day)\) ... (1)
\(x (miles) = 5 (day)\) ... (2)
Now, multiplying in a cross and we have:
\(x *1 = 5*6 \\ x = 30\)
Lastly, replacing the value of x in (2):
\(30 (miles) = 5 (day)\)
and this is the answer
Any questions, just leave in the comments.
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100 Points! Algebra question. Photo attached. Find the missing variable. Round your answers to the nearest hundredth. Please show as much work as possible. Thank you!
Answers
Using the z-score, mean and sample mean, the standard deviation of the sample is 7.57
What is z-score?A z-score describes the position of a raw score in terms of its distance from the mean when measured in standard deviation units. The z-score is positive if the value lies above the mean and negative if it lies below the mean.
The formula is given as;
z = x - μ / σ
z = z -scoreμ = mean x = sample meanσ = standard deviationSubstituting the values into the formula;
-2.13 = 19.3 - 29 / σ
Cross multiply both sides;
-2.13σ = 19.3 - 29
-2.13σ = -9.7
Divide both sides by the coefficient;
-2.13σ / -2.13 = -9.7 / -2.13
σ = 7.57
The standard deviation is 7.57
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As an example, 15,000 Men 18-34 watched program X at 7-8 pm on Monday night. 32,000 Men 18-34 had their TV on during the same time period. There are 200,000 Men 18-34 in the television households in the market. What would be the rating for Men 18-34 for program X? Group of answer choices 47 rating points 7.5 rating points 16 rating points 23.5 rating points
Answers
Answer:
7.5 rating points
Step-by-step explanation:
The computation of the rating for Men 18-34 for program X is shown below:
Given that
Number of men 18 -34 watched a program X = 15,000 = X
Number of men 18 - 34 watched in a same time = 32,000
And, the total households in the market = 200,000 = Y
So, the rating for men 18-34 for program x is
\(= \frac{X}{Y}\)
\(= \frac{15,000}{200,000}\)
= 7.5 rating points
We simply applied the above formula
Mr. Harry had 4 daughters, each daughter had a brother. How many Children does Mr. Harry have?
Answers
Answer:
Mr. Harry has 5 children.... I know what you were going for...
5) What is m∠DBE? Geometry
Answers
Answer:
ABE is 115.5 and DBE is 25.5
Step-by-step explanation:
90 is right angle
90 - 64.5 = 25.5 <----- its DBE
90 + 25.5 = 115.5 <----- its ABE
hope i helped
Solve.
1/3-6<24
{s | s<6}
O {S | s < 10}
O {S | s < 54}
O {S | s < 90}
Answers
Answer:
The answer is:
The fourth option,
{s | s <90}
Step-by-step explanation:
yes
Answer:
\(\boxed{s|s<90}\)
Step-by-step explanation:
1/3s-6<24
Add 6 on both sides.
1/3s<30
Multiply both sides by 3.
s<90
How to model using base 10 blocks to multiply 4x16
Answers
Answer:
Step-by-step explanation:
64
TAKE MY POINTS pleaseeee
Answers
Answer:
156 M
Reasoning you add How far He has walked from his starting point
Step-by-step explanation:
Answer: 156 m here u go
HELP lol thankssssss
Answers
Answer:
8 : 1
Step-by-step explanation:
Consider the points on the line relating raspberry juice to lemon- lime soda
That is
raspberry juice lemon- lime sode
8 1
16 2
24 3
32 4
These values are all in the ratio of 8 : 1
Answer:
8:1
Step-by-step explanation:
i just know
HELP HELP HELP 6 = x/8
The question is what is "x"?
Answers
Answer:
x= 48
Step-by-step explanation:
Multiply 8 by 6 to get x by itself and you get your answer.
Answer:
48=x
Step-by-step explanation:
just multiply 6 and 8
48/8 is 6 right?
so x = 48
Brainiest plz
How long should any sum of money be left on deposit at 4.5% APR if the value of the
deposit is to increase by 70%?
Answers
Answer:
It takes 12 years
Step-by-step explanation:
Amount(A) = P(1+r(^t
A ==> 170x/100 = x(1+0.045)^t
1.7 = (1.045)^t
Apply ln on both side
ln(1.7) = ln(1.045)^t
ln(1.7) = tln(1.045)
t = ln(1.045)/ln(1.7)
t = 0.53062825106/0.04401688541
t = 12.05510672
t = 12 years
The time it would take any deposit to increase by 70% is 12 years.
Determining the number of yearThe formula that would be used to determine the amount of time needed for a deposit to increase by 70% is:
t = In (FV/PV) / In(1 + r)
Where:
FV / PV = 1.7 r = interest rate t = timet = In (1.7) / In(1.045)
t = 12 years
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If f(-5)=7 identify a point on the graph of f
Answers
Answer:
If f(-5) = 7, then the point P(-5, 7) will be on the graph of f
where -5 is the x-coordinate and 7 is the y-coordinate
Step-by-step explanation:
What is the equation of the graphed line written in standard form? x – 4y = 4 x + 4y = 4 y = y equals StartFraction one-fourth EndFraction x minus 1.x – 1 y = –y equals negative StartFraction one-fourth EndFraction x minus 1.x – 1
Answers
Answer:
The answer is A
Step-by-step explanation:
I got it right
Answer:
Answer is A
Step-by-step explanation: