If the sample size is n = 2 and the population variance is o =7.75, what is the variance of the sampling distribution of means eqaul to?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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2. If the sample size is n = 2 and the population variance is
o=7.75, what is the variance ofthe sampling distribution
of means eqaul to?
3. Consider a population of four values (3, 4, 8, 9)
Fihd the population mean.
a.
b. Find the population variance.
c. Find the population standard deviation.
d. Find all possible samples of size 2 which can be drawn with
replacement from this population
Find the mean of the sampling distribution of means
f. Find the variance and standard deviation of the sampling
distribution of means.
Transcribed Image Text:2. If the sample size is n = 2 and the population variance is o=7.75, what is the variance ofthe sampling distribution of means eqaul to? 3. Consider a population of four values (3, 4, 8, 9) Fihd the population mean. a. b. Find the population variance. c. Find the population standard deviation. d. Find all possible samples of size 2 which can be drawn with replacement from this population Find the mean of the sampling distribution of means f. Find the variance and standard deviation of the sampling distribution of means.
PERFORMANCE TASK (PETA)
Directions: 1. Ask each of your family members their ages and
record them on a piece of paper. Compute for the average age
of your family, then randomly select the members of the family to
be studied using fishbowl method. From the selected family
members, compute for the average age.
Example:
FAMILY MEMBER
AGE
Father
42
Mother
40
1st Sibling
18
2nd Sibling
15
nth Sibling
Questions:
1. What is the average age and standard deviation of your whole family?
2. From the randomly selected members of your family, what is the average
age and the standard deviation?
3. Compare the two averages and standard deviation. What can you
conclude about the result?
Transcribed Image Text:PERFORMANCE TASK (PETA) Directions: 1. Ask each of your family members their ages and record them on a piece of paper. Compute for the average age of your family, then randomly select the members of the family to be studied using fishbowl method. From the selected family members, compute for the average age. Example: FAMILY MEMBER AGE Father 42 Mother 40 1st Sibling 18 2nd Sibling 15 nth Sibling Questions: 1. What is the average age and standard deviation of your whole family? 2. From the randomly selected members of your family, what is the average age and the standard deviation? 3. Compare the two averages and standard deviation. What can you conclude about the result?
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