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1. Samples of size n were randomly selected with replacement from populations with means and variances given below. Find the mean and variance of the sampling distributions of the sample means. n = 8 H= 6.9 o = 2.1 2. The scores of individual students on a national test have a normal distribution with mean 17.9 and standard deviation 5.3. At Nagaget Senior High School, 75 students took the test. If the scores at this school have the same distribution as national scores, find the mean and standard deviation of the sample mean for 75 students. Assume that the population is infinite.

1. Samples of size n were randomly selected with replacement from populations with means and variances given below. Find the mean and variance of the sampling distributions of the sample means. n = 8 H= 6.9 o = 2.1 2. The scores of individual students on a national test have a normal distribution with mean 17.9 and standard deviation 5.3. At Nagaget Senior High School, 75 students took the test. If the scores at this school have the same distribution as national scores, find the mean and standard deviation of the sample mean for 75 students. Assume that the population is infinite.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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Activity 3.1: Please Find Me! Direction: Do what is asked in each problem. 1. Samples of size n were randomly selected with replacement from populations with means and variances given below. Find the mean and variance of the sampling distributions of the sample means. n= 8 H= 6.9 o = 2.1 2. The scores of individual students on a national test have a normal distribution with mean 17.9 and standard deviation 5.3. At Nagaget Senior High School, 75 students took the test. If the scores at this school have the same distribution as national scores, find the mean and standard deviation of the sample mean for 75 students. Assume that the population is infinite. 2022.03.04 21:51
Transcribed Image Text:Activity 3.1: Please Find Me! Direction: Do what is asked in each problem. 1. Samples of size n were randomly selected with replacement from populations with means and variances given below. Find the mean and variance of the sampling distributions of the sample means. n= 8 H= 6.9 o = 2.1 2. The scores of individual students on a national test have a normal distribution with mean 17.9 and standard deviation 5.3. At Nagaget Senior High School, 75 students took the test. If the scores at this school have the same distribution as national scores, find the mean and standard deviation of the sample mean for 75 students. Assume that the population is infinite. 2022.03.04 21:51
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