Answered: Use the central limit theorem to find…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 13PPS

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Part 1

μx=enter your response here

Part 2

σx=enter your response here

(Round to three decimal places as needed.)

Part 3

Sketch a graph of the sampling distribution. Choose the correct graph below.

8.9 -324.1341.9

A normal curve is over a horizontal x overbar axis labeled from negative 324.1 to 341.9 and is centered on 8.9.

111 84.3137.7

A normal curve is over a horizontal x overbar axis labeled from 84.3 to 137.7 and is centered on 111.

8.9 -102.1119.9

A normal curve is over a horizontal x overbar axis labeled from negative 102.1 to 119.9 and is centered on 8.9.

111 93.2128.8

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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