Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A became available for wide-area telephone service. Of a random sample of 260 Carrier A users, 175 said they were attempting to learn more about their options, as did 159 of an independent random sample of 240 users of alternate carriers. Test, at the 5% significance level against a two-sided alternative, the null hypothesis that the two population proportions are the same. Click the link to view a standard normal distribution table. Let Px be the proportion of Carrier A users who said they were attempting to learn more about their options and P, be the proportion of users of alternate carriers who said they were attempting to learn more about their options. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: Px-Py #0 H₁: Px - Py = 0 O D. Ho: Px-Py = 0 H₁: Px-Py <0 OB. Ho: Px-Py = 0 H₁: Px-Py 20 OE. Ho: Px-Py = 0 H₁: Px-Py #0 (Round to two decimal places as needed.) OC. Ho: Px-Py = 0 H₁: Px-Py>0 OF. Ho: Px-Py = 0 H₁: Px-Py ≤0 The test statistic is Z= The critical value(s) is(are). (Round to twodecimal places as needed. Use a comma to separate answers as needed.) Ho There is Since the test statistic is than the critical value(s). evidence to conclude that there is a difference between the two population proportions.
Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A became available for wide-area telephone service. Of a random sample of 260 Carrier A users, 175 said they were attempting to learn more about their options, as did 159 of an independent random sample of 240 users of alternate carriers. Test, at the 5% significance level against a two-sided alternative, the null hypothesis that the two population proportions are the same. Click the link to view a standard normal distribution table. Let Px be the proportion of Carrier A users who said they were attempting to learn more about their options and P, be the proportion of users of alternate carriers who said they were attempting to learn more about their options. Determine the null and alternative hypotheses. Choose the correct answer below. OA. Ho: Px-Py #0 H₁: Px - Py = 0 O D. Ho: Px-Py = 0 H₁: Px-Py <0 OB. Ho: Px-Py = 0 H₁: Px-Py 20 OE. Ho: Px-Py = 0 H₁: Px-Py #0 (Round to two decimal places as needed.) OC. Ho: Px-Py = 0 H₁: Px-Py>0 OF. Ho: Px-Py = 0 H₁: Px-Py ≤0 The test statistic is Z= The critical value(s) is(are). (Round to twodecimal places as needed. Use a comma to separate answers as needed.) Ho There is Since the test statistic is than the critical value(s). evidence to conclude that there is a difference between the two population proportions.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Subject: statistics
Transcribed Image Text:Small-business telephone users were surveyed 6 months after access to carriers other than Carrier A became
available for wide-area telephone service. Of a random sample of 260 Carrier A users, 175 said they were attempting
to learn more about their options, as did 159 of an independent random sample of 240 users of alternate
carriers. Test, at the 5% significance level against a two-sided alternative, the null hypothesis that the two population
proportions are the same.
Click the link to view a standard normal distribution table.
Let Px be the proportion of Carrier A users who said they were attempting to learn more about their options and Py be
the proportion of users of alternate carriers who said they were attempting to learn more about their options.
Determine the null and alternative hypotheses. Choose the correct answer below.
OA. Ho: Px-Py #0
H₁: Px-Py = 0
O D. Ho: Px-Py = 0
H₁: Px-Py <0
OB. Ho: Px-Py = 0
H₁: Px-Py 20
O E. Ho: Px-Py = 0
H₁: Px-Py #0
OC. Ho: Px-Py = 0
H₁: Px-Py>0
OF. Ho: Px-Py = 0
H₁: Px-Py ≤0
The test statistic is Z=. (Round to two decimal places as needed.)
The critical value(s) is(are).
(Round to twodecimal places as needed. Use a comma to separate answers as needed.)
Ho There is
Since the test statistic is
than the critical value(s).
evidence to conclude that there is a difference between the two population proportions.
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