DAssignment Score: Lx Give Up? 69.4% Resources E Feedback Try Again Question 7 of 11 <. O Attempt 3 ▼ In marketing, response modeling is a method for identifying customers most likely to respond to an advertisement. Suppose that in past campaigns 81.6% of customers identified as likely respondents responded to a nationwide direct marketing campaign. After making improvements to their model, a team of marketing analysts hoped that the proportion of customers identified as likely respondents who responded to a new campaign would increase. The analysts selected a random sample of 1500 customers and found that 1248 responded to the marketing campaign. The marketing analysts want to use a one-sample z-test to see if the proportion of customers who responded to the advertising campaign, p, has increased since they updated their model. They decide to use a significance level of a 0.10. %3D Select the correct null (Ho) and alternative (H1) hypotheses. Ho: p = 0.816 and H1: p > 0.816 Ho: p = 0.816 and H1: p > 0.816 Ho: p = 0.816 and H1: p # 0.816 %3D Ho: p = 0.832 and H1: p > 0.832 %3D Ho: p = 0.832 and H1: p > 0.832 Determine the value of the z-statistic. Give your answer precise to at least two decimal places. Determine the P-value for this test. Give your answer precise to at least three decimal places. hp %24 4 * 00 Assignment Score: 69.4% Resources Ly Give Up? O Hint Check Answer Question 8 of 11 Suppose that administrators of a large school district wish to estimate the proportion of children in the district enrolling in kindergarten who attended preschool. They took a simple random sample of children in the district who are enrolling in kindergarten. Out of 75 children sampled, 51 had attended preschool. Construct a large-sample 99% z-confidence interval for p, the proportion of all children enrolled in kindergarten who attended preschool. Give the limits of the confidence interval as decimals, precise to at least three decimal places. lower limit : upper limit : Construct a plus four 99% z-confidence interval for p. Give the limits of the confidence interval as decimals, precise to at least three decimal places. lower limit : upper limit : hp & 24 96 9-
DAssignment Score: Lx Give Up? 69.4% Resources E Feedback Try Again Question 7 of 11 <. O Attempt 3 ▼ In marketing, response modeling is a method for identifying customers most likely to respond to an advertisement. Suppose that in past campaigns 81.6% of customers identified as likely respondents responded to a nationwide direct marketing campaign. After making improvements to their model, a team of marketing analysts hoped that the proportion of customers identified as likely respondents who responded to a new campaign would increase. The analysts selected a random sample of 1500 customers and found that 1248 responded to the marketing campaign. The marketing analysts want to use a one-sample z-test to see if the proportion of customers who responded to the advertising campaign, p, has increased since they updated their model. They decide to use a significance level of a 0.10. %3D Select the correct null (Ho) and alternative (H1) hypotheses. Ho: p = 0.816 and H1: p > 0.816 Ho: p = 0.816 and H1: p > 0.816 Ho: p = 0.816 and H1: p # 0.816 %3D Ho: p = 0.832 and H1: p > 0.832 %3D Ho: p = 0.832 and H1: p > 0.832 Determine the value of the z-statistic. Give your answer precise to at least two decimal places. Determine the P-value for this test. Give your answer precise to at least three decimal places. hp %24 4 * 00 Assignment Score: 69.4% Resources Ly Give Up? O Hint Check Answer Question 8 of 11 Suppose that administrators of a large school district wish to estimate the proportion of children in the district enrolling in kindergarten who attended preschool. They took a simple random sample of children in the district who are enrolling in kindergarten. Out of 75 children sampled, 51 had attended preschool. Construct a large-sample 99% z-confidence interval for p, the proportion of all children enrolled in kindergarten who attended preschool. Give the limits of the confidence interval as decimals, precise to at least three decimal places. lower limit : upper limit : Construct a plus four 99% z-confidence interval for p. Give the limits of the confidence interval as decimals, precise to at least three decimal places. lower limit : upper limit : hp & 24 96 9-
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:DAssignment Score:
Lx Give Up?
69.4%
Resources
E Feedback
Try Again
Question 7 of 11
<.
O Attempt 3 ▼
In marketing, response modeling is a method for identifying customers most likely to respond to an advertisement. Suppose
that in past campaigns 81.6% of customers identified as likely respondents responded to a nationwide direct marketing
campaign. After making improvements to their model, a team of marketing analysts hoped that the proportion of customers
identified as likely respondents who responded to a new campaign would increase. The analysts selected a random sample of
1500 customers and found that 1248 responded to the marketing campaign.
The marketing analysts want to use a one-sample z-test to see if the proportion of customers who responded to the advertising
campaign, p, has increased since they updated their model. They decide to use a significance level of a
0.10.
%3D
Select the correct null (Ho) and alternative (H1) hypotheses.
Ho: p = 0.816 and H1: p > 0.816
Ho: p = 0.816 and H1: p > 0.816
Ho: p = 0.816 and H1: p # 0.816
%3D
Ho: p = 0.832 and H1: p > 0.832
%3D
Ho: p = 0.832 and H1: p > 0.832
Determine the value of the z-statistic. Give your answer precise to at least two decimal places.
Determine the P-value for this test. Give your answer precise to at least three decimal places.
hp
%24
4
* 00
Transcribed Image Text:Assignment Score:
69.4%
Resources
Ly Give Up?
O Hint
Check Answer
Question 8 of 11
Suppose that administrators of a large school district wish to estimate the proportion of children in the district enrolling in
kindergarten who attended preschool. They took a simple random sample of children in the district who are enrolling in
kindergarten. Out of 75 children sampled, 51 had attended preschool.
Construct a large-sample 99% z-confidence interval for p, the proportion of all children enrolled in kindergarten who
attended preschool. Give the limits of the confidence interval as decimals, precise to at least three decimal places.
lower limit :
upper limit :
Construct a plus four 99% z-confidence interval for p. Give the limits of the confidence interval as decimals, precise to at
least three decimal places.
lower limit :
upper
limit :
hp
&
24
96
9-
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