A recent study states that 45 percent of Americans fear public speaking. A student believes that less than 45 percent of College students fear public speaking and decides to test her claim. She randomly selects 117 college students and finds that 48 of them fear public speaking. Test the student's claim at the 0.01 significance level. H.:p = 0.45 Ha:p < 0.45 What is the test statistic? (Report answer accurate to four decimal places.) test statistic = What is the p-value? (Report answer accurate to four decimal places.) p-value =

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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A recent study states that 45 percent of Americans fear public speaking. A student believes that less than 45
percent of College students fear public speaking and decides to test her claim. She randomly selects 117
college students and finds that 48 of them fear public speaking. Test the student's claim at the 0.01
significance level.
H.:p = 0.45
Ha:p < 0.45
What is the test statistic? (Report answer accurate to four decimal places.)
test statistic =
What is the p-value? (Report answer accurate to four decimal
aces.)
p-value :
%3D
Transcribed Image Text:A recent study states that 45 percent of Americans fear public speaking. A student believes that less than 45 percent of College students fear public speaking and decides to test her claim. She randomly selects 117 college students and finds that 48 of them fear public speaking. Test the student's claim at the 0.01 significance level. H.:p = 0.45 Ha:p < 0.45 What is the test statistic? (Report answer accurate to four decimal places.) test statistic = What is the p-value? (Report answer accurate to four decimal aces.) p-value : %3D
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