A sample of n = 100 scores is selected from a population with mu = 80 with sigma= 20. On average, how much error is expected between the sample mean and the population mean?

Answers

Answer 1
Answer:

Step-by-step explanation:

s = σ / √n

s = 20 / √100

s = 2

Answer 2
Answer:

Final answer:

Using the formula for standard error, we calculate the expected error between the sample mean and the population mean in the scenario provided. The answer is 2.

Explanation:

The standard error of the mean (SEM) can be calculated using the formula SEM = sigma/ sqrt(n), where 'sigma' is the standard deviation of the population and 'n' is the sample size. In this case, sigma (σ) is 20 and the sample size (n) is 100. So, SEM = 20/sqrt(100) = 20/10 = 2.

The standard error quantifies the average amount of error between the sample mean and the population mean. Therefore, one can expect, on average, a 2 score difference between the sample mean and the population mean.

Learn more about Standard Error here:

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-3.6 divided by -0.75
How do you do these two questions?
Choose correct way to rewrite 56% as a decimal number.A. 0.056B. 0.56C. 5.6
Martin can travel 174 miles in 3 hours. At this rate, how far can he travel in 7.
13. The volume of a gas is inversely proportional to the pressure of the gas. If a balloon is filled with 210 cubic inches of a gas at a pressure of 14 pounds per square inch, find the new pressure of the gas if the volume is decreased to 70 cubic inches.

Lucio is buying candy. He buys 1.5 pounds of gummy bears which cost $1.88 per pound and 0.8 pounds of caramels which cost $2.75 per pound. What is the total cost of the candy?

Answers

Answer:

$5.02

Step-by-step explanation:

Answer:

5.02

Step-by-step explanation:

For his long distance phone service, Bill pays a $3 monthly fee plus 11 cents per minute. Last month, Bill's long distance bill was $16.09. For how many minutes was Bill billed?

Answers

Answer:

1.19 minutes

Step-by-step explanation:

First, subtract the $3 monthly fee:

16.09 - 3

= 13.09

Then, divide this by 11:

13.09/11

= 1.19

So, he was billed for 1.19 minutes

A scientist digs near an ancient city.She finds a cup buried at -7 feet. She finds a plate buried at -4 feet.
Use absolute value to show which was buried farther from the surface.
A. The cup is farther from the surface, because |-7 is less than 1-4).
B. The cup is farther from the surface, because |-71 is greater than |-
4.
C. The plate is farther from the surface, because (-71 is greater than
1-41.
D. The plate is farther from the surface, because -7 is greater than -
4.
My

Answers

Answer:

B

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

What the measure of a interior angle of a six sided figure

Answers

Answer:

120 degrees.

Step-by-step explanation:

If it is a regular 6 sided figure then each interior angle is 180 - (360/6)

= 120 DEGREES.

This is a two-part question: A 12-pack of bottled mineral water sells for $3.85. For the following,state whether to use multiplication or division for the specified amount:
a) The cost of one bottle of water:
b) The cost of four 12-packs of water:

Answers

Answer:

The cost of one water bottle of water would be division, The cost of four 12-packs of water is multiplication.

Step-by-step explanation:

15-9+2.65+1.35+2(1.74)

Answers

Answer:

13.48

Step-by-step explanation:

So I used the Order of Operation and went in order to solve the problem. First is P (Parentheses)

(1.74) = 1.74

Next, Exponents (E).

There are none.

Then, Multiplication and Division (from left to right).

2(1.74) = 3.48 | 15-9+2.65+1.35+3.48.

The fourth is Addition and Subtraction (from left to right).

15-9+2.65+1.35+2= 13.48