PLEASE HELP!! its due in 20 minutes and i dont get this

The -value of the test is 1.90. This indicates that the mean processing time is significantly greater than 5.5 hours, supporting the manufacturer's desire to set a standard time required by employees to complete a certain process

The t-value will be equal to 1.39 for the given statistics.

To test if the mean processing time exceeds 5.5 hours, we can use a one-sample t-test.

The null hypothesis is that the mean processing time is less than or equal to 5.5 hours:

H0: µ ≤ 5.5

The alternative hypothesis is that the mean processing time is greater than 5.5 hours:

Ha: µ > 5.5

We will use a significance level of 0.05.

The formula for the t-test statistic is:

t = (X - µ) / (s / √n)

Where:

X = sample mean

µ = hypothesized population mean

s = sample standard deviation

n = sample size

Substituting the given values, we get:

t = (6 - 5.5) / (2 / √21) = 1.386

The degree of freedom for the t-test is n-1 = 20.

Using a t-table or calculator, the p-value associated with a t-value of 1.386 and 20 degrees of freedom is 0.093.

Since the p-value (0.093) is greater than the significance level (0.05), we fail to reject the null hypothesis. Therefore, there is not enough evidence to suggest that the mean processing time exceeds 5.5 hours.

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Answer: (- 1, 3 )

Step-by-step explanation:

The statement 'When you try to find the most appropriate input probability distribution in a simulation model, you first have to choose the most appropriate family, and then you have to select the most appropriate member of that family' is generally true because in simulation modeling, input probability distributions are used to represent uncertain or random factors in the system being modeled.

These distributions are often classified into different families, such as normal, exponential, uniform, and so on, based on their properties and mathematical characteristics.

When selecting an appropriate distribution for a simulation model, it is important to first identify the family of distributions that best represents the underlying random process being modeled.

For example, if the data is symmetric and bell-shaped, then the normal distribution might be a suitable family to consider. However, if the data is non-negative and skewed, then the exponential or gamma distribution might be more appropriate.

Once the appropriate family of distributions is selected, the next step is to identify the most appropriate member or parameter values of that family that best fit the data being modeled.

This often involves using statistical methods to estimate the parameters of the distribution based on historical data or expert knowledge.

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\(45000 \: m \times \frac{1 \: km}{1000 \: m} \)

45 km in the 2nd hour

\(7500000 \: cm \times \frac{1 \: m}{100 \: cm} \times \frac{1 \: km}{1000 \: m } \)

75 km in the 3rd hour

\( \frac{(75 - 30)}{(3 - 1)} \)

22.5 km/h

//

I tried.

same answer as the one above

1810

A model is a representation that we can be able to use to solve a given mathematical problem.

To create a model to represent 4 ÷ 1/5, we can use a visual representation of division known as the "sharing" or "grouping" model. Here are the steps to create the model:

Draw a rectangle to represent the whole amount, which in this case is 4.

Divide the rectangle into five equal parts, to represent the denominator of 1/5.

Shade in one of the five parts to represent the numerator of 1/5.

Label the shaded part with the fraction 1/5.

Divide the whole rectangle into four equal parts, to represent the dividend of 4.

Share or group the four equal parts into the five parts represented by the denominator.

Count how many groups of five there are, which represents the answer to the division problem 4 ÷ 1/5.

Label the answer as a mixed number or fraction if necessary.

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The correct statement true about the two points of intersection in Step 3 is,

⇒ They are the same distance from AB.

A line segment is a part of line having two endpoints and it is bounded by two distinct end points and contain every point on the line that is between its endpoint.

Given that;

Steps are,

Step 1: Place a compass at A. Use a compass setting that is greater than half the length of AB and draw an arc.

Step 2: Keep the same compass setting. Place the compass at B. Draw an arc.

Step 3: Draw a line through the two points of intersection of the arcs.

Now, Cleary this method is used to divide a line in two equal parts.

Hence, The correct statement true about the two points of intersection in Step 3 is,

⇒ They are the same distance from AB.

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Answer:

D. Undefined

Step-by-step explanation:

The graph of x=3 is a straight, vertical line. Therefore, the slope will be undefined.

Answer:

He had 11 five dollar bills.

Step-by-step explanation:

Since Jonah realized that he had twice as many one dollar bills as he has five dollars bills, and 6 less ten dollar bills as he has one dollar bills, if we say that the number of one dollar bills he has is "x", then the number of five dollar bills and ten dollars bills will be:

five dollar bills = \(\frac{x}{2}\)

ten dollar bills = \(x - 6\)

Since the total money he had was \(237\), then the sum of all the bills he had multiplied by it's respective values must be equal to that:

\(\text{(one dollar bills)} + 5*\text{(five dollar bills)} + 10*\text{(ten dollar bills)} = 237\\x + 5*\frac{x}{2} + 10*(x - 6) = 237\\x +\frac{5*x}{2} + 10*x - 60 = 237\\11*x + \frac{5*x}{2} = 237 + 60\\\frac{22*x + 5*x}{2} = 297\\27*x = 297*2\\x = \frac{594}{27} = 22\)

Therefore he had 11 five dollar bills.

Answer:

X=6

Step-by-step explanation:

2x-3/3=X/2

or, (2x-3)×2= 3x ( cross multiplication )

or, 4x-6=3x

or,4x-3x=6

... 1x=6

hence ...... x=6

Answer:

N, which is the increment is 4

Answer: C

Step-by-step explanation:

IT IS RIGHT ON -2

There's no point of intersection between the line connecting (2,3,6) to (2,2,3) and the line connecting (1,2,1) to (3,0,-1)

To find the point of intersection between two lines in three-dimensional space, we need to solve a system of equations. We can set up the equations of the two lines using the parametric form:

Line 1:

x = 2 + t(0)

y = 3 + t(-1)

z = 6 + t(-3)

Line 2:

x = 1 + s(2)

y = 2 - s(2)

z = 1 - s(2)

We can set the x, y, and z values equal to each other for the point of intersection, and solve for t and s:

2 + t(0) = 1 + s(2)

3 + t(-1) = 2 - s(2)

6 + t(-3) = 1 - s(2)

Simplifying the second equation, we get:

t + s = 1

Multiplying the first equation by 2, we get:

4 = 2 + 2t + 2s

Substituting t + s = 1, we get:

4 = 2 + 2(t + s)

4 = 2 + 2(1)

4 = 4

This means that our system of equations has no unique solution, and the two lines do not intersect at a single point. Therefore, there is no point of intersection between the two lines.

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Answer:

15 minutes

because 25% of 60 can be written as 25% × 60.

= 25/100 × 60

= 15

Answer:

C. 19

Step-by-step explanation:

90+26=116

180-116=64

3x+7=64

3x=57

x=19

Answer:

please be more specific

Step-by-step explanation:

none

Answer:

tall candles = 39

Short candles = 52

Step-by-step explanation:

let tall candles be x

and short candles be y

No. Of candles sold = x + y =91

Money made from candles will be equal to = 8x + 5y = $572

These both are simultaneous linear equations.

x + y =91 ( multiply by 5)

5x + 5y = 455

8x + 5y = $572

Subtract them:

-3x = -117

x = -117/3

x = 39

put value of x in

x + y = 91

39 + y = 91

y = 91 - 39

y = 52

x shows tall candles so they are 39

y shows short candles so they are 52

-6

-24/2 + 25/5 + 1

-24/2+25/5+1

-12+25/5+1

-12 + 5 + 1

-7+1

-6

Answer:

see explanation

Step-by-step explanation:

using the identity

sin²Θ = 1 - cos²Θ

consider the left side

1 - \(\frac{sin^20}{1+cos0}\)

= 1 - \(\frac{1-cos^20}{1+cos0}\)

1 - cos²Θ is a difference of squares and factors as (1 - cosΘ)(1 + cosΘ)

= 1 - \(\frac{(1-cos0)(1+cos0)}{1+cos0}\) ← cancel (1 + cosΘ) on numerator/ denominator

= 1 - (1 - cosΘ) ← distribute parenthesis by - 1

= 1 - 1 + cosΘ

= cosΘ

= right side

On September 1, 2018, Dubai Company should record the following entry:

Debit: Cash (or Note Payable) - $120,000

Credit: Note Payable (or Cash) - $120,000

When Dubai Company borrows $120,000 from ADCB Bank by signing a 4-month, 12% interest-bearing note, they need to record the transaction in their books. The entry will depend on whether they received the cash or the note itself. If they received the cash, the entry would be a debit to Cash and a credit to Note Payable, both for $120,000. If they received the note, the entry would be a debit to Note Payable and a credit to Cash, both for $120,000.

The entry represents the initial recognition of the note payable on Dubai Company's books. It acknowledges the liability they have incurred by borrowing funds from ADCB Bank. The note payable will be due in 4 months and carries an interest rate of 12%. It is important for Dubai Company to accurately record this transaction to maintain proper financial records and fulfill their obligations to ADCB Bank.

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The radius of curvature (r) is -100 cm and Magnification (m) is 11.26. The mirror is a concave mirror.

Given Data: Object distance, u = -1.03 cm; Image distance, v = 11.6 cm

To find: The radius of curvature (r) and Magnification (m).

Formula used:

1/f = 1/v - 1/u;

Magnification, m = -v/u

Calculation:

Using the formula,

1/f = 1/v - 1/u

1/f = 1/11.6 - 1/-1.03 = -0.02

f = -50 cm

The radius of curvature,

r = 2f

r = 2 × (-50) = -100 cm

Since the radius of curvature is negative, the mirror is a concave mirror.

Magnification, m = -v/u= -11.6/-1.03= 11.26

Hence, the radius of curvature (r) is -100 cm and Magnification (m) is 11.26.

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Answer:

1.) $1

2.)$4

3.)$12

4.)3/4

Step-by-step explanation:

32(.5)=16

she had 16 left after lunch. 16(.25)=4

16-4=12

1/2=2/4

2/4+1/4=3/4

Answer:

1) lunch 16

2) coffee 4

3) 12

4) 3/4ths or .75 or 75%

Answer:

A: 0.3

B: 0.3

Step-by-step explanation:

Basically both answers are the same

Answer:

346 2/3 miles

Step-by-step explanation:

speed*time = the distance he rode, 8 2/3 is equivalent to 26/3, if you do 40*26/3 that should be 346 2/3 miles

Answer:

52/9

Step-by-step explanation:

Since 2/3 is already a fraction all we have to do is convert 8 2/3 into a fraction which would be 26/3. If you multiply 2/3 and 26/3 you'll get 52/9.

Explanation: Simply divide 3 over 5. We cannot do much with the fraction since 3/5 can't be reduced. So we leave it as is.

3/5 in decimal form is exactly 0.6 and that converts to 60%, meaning each person gets 60% of a full liter.

(a) The sample mean, sample variance, and standard deviation of the given data is 64.2, 47.66, and 6.91, respectively.

(b) The median for the data is 64, while the quartiles are 61 and 68.

(a) The formula to calculate sample mean:

Sample mean = ∑x/n

where ∑x is the sum of all values and n is the number of values.

Sample mean = (75+71+61+60+64+61+62+59+62+65+65+68+68+72+74)/15 = 963/15 = 64.2°F

The formula to calculate sample variance:

Sample variance = ∑(x-μ)²/(n-1)

where ∑(x-μ)² is the sum of squared differences between each value and the mean, μ is the mean of the sample and n is the number of values.

Sample variance = (75-64.2)²+(71-64.2)²+(61-64.2)²+(60-64.2)²+(64-64.2)²+(61-64.2)²+(62-64.2)²+(59-64.2)²+(62-64.2)²+(65-64.2)²+(65-64.2)²+(68-64.2)²+(68-64.2)²+(72-64.2)²+(74-64.2)²/14=667.2/14 = 47.657°F² = 47.66°F²

The formula to calculate sample standard deviation:

Sample standard deviation, s = √(∑(x-μ)²/(n-1))

Sample standard deviation = √47.657 = 6.91°F

(b) Arranging the data in increasing order, we have: {59, 60, 61, 61, 62, 62, 64, 65, 65, 68, 68, 71, 72, 74, 75}

The median is the middle value when the data is arranged in order of magnitude. Since there are an odd number of values in this data set, the median is the value that separates the upper and lower halves of the data:

Median = 64

The quartiles are the three points that divide the data set into four groups, each with an equal number of values. The first quartile, Q1, separates the lowest 25% of values from the others; the second quartile, Q2, is the median; and the third quartile, Q3, separates the highest 25% of values from the others. To find the quartiles, divide the data set into two halves at the median and then find the median of each half. The first half contains values {59, 60, 61, 61, 62, 62, 64} and the second half contains {65, 65, 68, 68, 71, 72, 74, 75}.

Q1 = 61

Q3 = 68

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Answer:

276.75

Step-by-step explanation:

one gallon lets sara drive 22.5 miles. multiply that by 12.3 and u get 276.75 !

Answer:

x ≈ 7.9 ft

Step-by-step explanation:

cos∅ = adjacent over hypotenuse

Since we are dealing with a right triangle, we can use trigonometry to help us solve for missing values:

cos44° = x/11

11cos44° = x

x = 7.91274

x ≈ 7.9 ft

Answer:

the Midian is 9

mode is 3

mean is 6

it ranges from 3 to 12

the Answer is  315 because 300  multiplied by 15 so if you add it up you have 315 so your Answer is:315