14. A researcher used to develop a problem-solving test to randomly selected 100 Grade 11 students. From this sample, the mean and standard deviation is 90 and 4 respectively. The mean of the population is 88. The researcher is in a situation of the sampling distribution of the sample mean wherein the population variance is A. unknown C. large D. small B. known

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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14. A researcher used to develop a problem-solving test to
randomly selected 100 Grade 11 students. From this sample,
the mean and standard deviation is 90 and 4 respectively. The
mean of the population is 88. The researcher is in a situation
of the sampling distribution of the sample mean wherein the
population variance is
A. unknown
C. large
D. small
B. known
15. Given u
54.2, o = 7.8, X =60.2 and n = 76. This is an example
of the sampling distribution of the sample mean for a normal
population when the population variance is
A. unknown
C. large
D. smal
B. known
Transcribed Image Text:14. A researcher used to develop a problem-solving test to randomly selected 100 Grade 11 students. From this sample, the mean and standard deviation is 90 and 4 respectively. The mean of the population is 88. The researcher is in a situation of the sampling distribution of the sample mean wherein the population variance is A. unknown C. large D. small B. known 15. Given u 54.2, o = 7.8, X =60.2 and n = 76. This is an example of the sampling distribution of the sample mean for a normal population when the population variance is A. unknown C. large D. smal B. known
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