In a 2013 poll, it was found that 0.78 of Americans cover their mouth when sneezing. A sociologist claims that this proportion has decreased since then. She wishes to test the following claim (H1) at a significance level of a = =0.10. Ho: p = 0.78 H₁: p<0.78 She obtains a random sample of 21 Americans and finds that 13 cover their mouth when sneezing. The p-value for this test is the probability of observing... O at most 13 Americans cover their mouth when sneezing. O at least 13 Americans cover their mouth when sneezing. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null
In a 2013 poll, it was found that 0.78 of Americans cover their mouth when sneezing. A sociologist claims that this proportion has decreased since then. She wishes to test the following claim (H1) at a significance level of a = =0.10. Ho: p = 0.78 H₁: p<0.78 She obtains a random sample of 21 Americans and finds that 13 cover their mouth when sneezing. The p-value for this test is the probability of observing... O at most 13 Americans cover their mouth when sneezing. O at least 13 Americans cover their mouth when sneezing. What is the p-value for this sample? (Report answer accurate to four decimal places.) p-value = The p-value is... O less than (or equal to) a O greater than a This test statistic leads to a decision to... O reject the null
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4AGP
Question
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 5 steps with 12 images
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill