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vova2212 [387]
1 year ago
12

Find the standard deviation of the sampling distribution of sample means using the given information. Round to one decimal place

, if necessary.
μ=77 and σ=14; n=64
Mathematics
1 answer:
maria [59]1 year ago
8 0

The standard deviation of the sampling distribution of sample means using the given information is 1.8

What does the mathematical term "rounding" mean?

Rounding is a method for estimating a specific number in a situation. To determine how to round a number, look at the next digit in the appropriate position; if it is less than 5, round down, and if it is greater than 5, round up. The precise rounding of decimal figures is referred to as "rounding decimals."

What are the guidelines for rounding off decimal numbers?

To locate the rounding digit, look at its right side.

If the right-side numbers are less than 5, consider them to be equal to zero.

The digit on the right is increased by one and the other digits are treated as zero if the right-side digits are greater than or equal to 5.

The population standard deviation divided by the square root of the sample size, or n, gives the standard deviation of the sampling distribution of sample means, or x, for any given population. Therefore:

For the provided data, the sampling distribution's standard deviation of sample means is \frac{14}{\sqrt{64} }, or 1.8.

For more clarifications on rounding off numbers, visit: brainly.com/question/21938149

#SPJ1

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Enter the ratio as a fraction in lowest terms<br><br> 6 ft to 40 in.
tresset_1 [31]

Answer:

9 in. to 5 in.

or 9/5

Step-by-step explanation:

6 ft=6*12=72 in.

6 ft/ 40 in.=72/40=9/5

9 in. to 5 in.

3 0
4 years ago
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Complete the equation of the line through (-9,-9) and (-6,0)
Rudik [331]

For this case we have that by definition, the equation of the line of the slope-intersection form is given by:

y = mx + b

Where:

m: It is the slope of the line

b: It is the cut-off point with the y axis.

According to the data of the statement we have the following points:

(x_ {1}, y_ {1}): (- 9, -9)\\(x_ {2}, y_ {2}): (- 6,0)

We found the slope:

m = \frac {y_ {2} -y_ {1}} {x_ {2} -x_ {1}} = \frac {0 - (- 9)} {- 6 - (- 9)} = \frac { 9} {- 6 + 9} = \frac {9} {3} = 3

Thus, the equation is of the form:

y = 3x + b

We substitute one of the points and find b:

0 = 3 (-6) + b\\0 = -18 + b\\b = 18

Finally, the equation is:

y = 3x + 18

Answer:

y = 3x + 18

7 0
3 years ago
How is the graph below misleading?
antoniya [11.8K]

Answer:

A is the right answer

Step-by-step explanation:

the y axis can start at 0 and the y axis isn't broken. and the increments aren't to large so most reasonable will be A

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3 years ago
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In a certain large state university, older students get to choose their classes before younger students; that often means that f
lord [1]

There is a good evidence that freshmen have a better than 32% chance of getting the course if they ask for it.

The null hypothesis is that  freshmen do not have a better than 32% chance of getting the course if they ask for it.

The alternative hypothesis is freshmen have a better than 32% chance of getting the course if they ask for it.

<h3>What are the chance that a freshman would get the course?</h3>

The chance of getting the course = number of freshmen who got the course / total number of freshmen

73 / 200 = 36.50%

<h3>What are the null and alternative hypothesis?</h3>

The null hypothesis states that there is no relationship between the population parameters. It is known as the true hypothesis. In the question, the population parameters are freshmen and getting the course

The alternative hypothesis states that there is a relationship between the population parameters.

To learn more about the null hypothesis, please check: brainly.com/question/4454077

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7 0
2 years ago
Please help me i will give you brainlist
Viefleur [7K]

Here is your answer. In the first bracket it's your X1 and Y1 and second bracket it's your X2 and Y2

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