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A statistics student wants to determine if a quiet room is a better study environment for students than a noisy environment. 111 students were recruited for an experiment. 55 students were randomly assigned to a quiet study environment while the other 56 were assigned to a noisy environment. Students in each group were given a short booklet from which to study and then were given a brief multiple- choice test. 38 of the students who studied in the quiet study environment passed the test, compared to 30 students who were in the noisy environment. Let P1 = the true proportion of all students like these who study in a quiet environment and pass the test and p2 = the true proportion of all students like these who study in a noisy environment and pass the test. The student wants to conduct a significance test of p1 – P2. What is the standardized test statistic and P-value? None of these are correct. z = 1. 68, and P-value = 0. 093 Oz = 1. 68, P-value = 0.953 Oz = 1. 42, P-value = 0.078 Oz = -1. 42, and P-value = 0.078

A statistics student wants to determine if a quiet room is a better study environment for students than a noisy environment. 111 students were recruited for an experiment. 55 students were randomly assigned to a quiet study environment while the other 56 were assigned to a noisy environment. Students in each group were given a short booklet from which to study and then were given a brief multiple- choice test. 38 of the students who studied in the quiet study environment passed the test, compared to 30 students who were in the noisy environment. Let P1 = the true proportion of all students like these who study in a quiet environment and pass the test and p2 = the true proportion of all students like these who study in a noisy environment and pass the test. The student wants to conduct a significance test of p1 – P2. What is the standardized test statistic and P-value? None of these are correct. z = 1. 68, and P-value = 0. 093 Oz = 1. 68, P-value = 0.953 Oz = 1. 42, P-value = 0.078 Oz = -1. 42, and P-value = 0.078

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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 26PFA
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A statistics student wants to determine if a quiet room is a better study environment for students than a noisy environment. 111 students were recruited for an experiment. 55 students were randomly assigned to a quiet study environment while the other 56 were assigned to a noisy environment. Students in each group were given a short booklet from which to study and then were given a brief multiple- choice test. 38 of the students who studied in the quiet study environment passed the test, compared to 30 students who were in the noisy environment. Let pj = the true proportion of all students like these who study in a quiet environment and pass the test and p2 = the true proportion of all students like these who study in a noisy environment and pass the test. The student wants to conduct a significance test of p1 – p2. What is the standardized test statistic and P-value? None of these are correct. z = 1. 68, and P-value = 0. 093 z = 1. 68, p-value = 0. 953 Oz = 1. 42, P-value = 0.078 Oz = -1.42, and P-value = 0. 078
Transcribed Image Text:A statistics student wants to determine if a quiet room is a better study environment for students than a noisy environment. 111 students were recruited for an experiment. 55 students were randomly assigned to a quiet study environment while the other 56 were assigned to a noisy environment. Students in each group were given a short booklet from which to study and then were given a brief multiple- choice test. 38 of the students who studied in the quiet study environment passed the test, compared to 30 students who were in the noisy environment. Let pj = the true proportion of all students like these who study in a quiet environment and pass the test and p2 = the true proportion of all students like these who study in a noisy environment and pass the test. The student wants to conduct a significance test of p1 – p2. What is the standardized test statistic and P-value? None of these are correct. z = 1. 68, and P-value = 0. 093 z = 1. 68, p-value = 0. 953 Oz = 1. 42, P-value = 0.078 Oz = -1.42, and P-value = 0. 078
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