Answered: Use the normal distribution and the…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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Question

Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come from a random sample and use a 5%5% significance level.

Test H0 : p=0.5H0 : p=0.5 vs Ha : p>0.5Ha : p>0.5 using the sample results p^=0.56p^=0.56 with n=75n=75

Round your answer for the test statistic to two decimal places, and your answer for the p-value to three decimal places.

test statistic = ________________; test statistic

p-value = ______________; p-value

reject or not reject?

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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