Directions: Solve the given problem completely. For each number, satisfy the following: 1. Word Problem: The scores of Grade 11 students in an achievement test in mathematics are normally distributed with a mean of 83 and a standard deviation of 8. Suppose that a random sample of size n = 20 is taken from this group of students. Find the following: A. Write the given. B. Identify what theorem to use. C. Mean and standard deviation of the SDSM

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 13PPS
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Directions: Solve the given problem completely. For each number, satisfy the following:
I. Word Problem: The scores of Grade 11 students in an achievement test in mathematics
are normally distributed with a mean of 83 and a standard deviation of 8. Suppose that a
random sample of size n = 20 is taken from this group of students.
Find the following:
A. Write the given.
B. Identify what theorem to use.
C. Mean and standard deviation of the SDSM
D. Probability that the mean in the sample is
Less than 80
At least 87
Transcribed Image Text:Directions: Solve the given problem completely. For each number, satisfy the following: I. Word Problem: The scores of Grade 11 students in an achievement test in mathematics are normally distributed with a mean of 83 and a standard deviation of 8. Suppose that a random sample of size n = 20 is taken from this group of students. Find the following: A. Write the given. B. Identify what theorem to use. C. Mean and standard deviation of the SDSM D. Probability that the mean in the sample is Less than 80 At least 87
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