a. Construct a 95% confidence interval estimate of the population proportion of adults who had bought something online. Sns (Round to four decimal places as needed.) b. Construct a 95% confidence interval estimate of the population proportion of online shoppers who are weekly online shoppers. Sns (Round to four decimal places as needed.) c. How would the director of e-commerce sales for a company use the results of (a) and (b)? O A. A greater proportion of adults have purchased something online, but those adults who are weekly online shoppers make larger purchases, so the director of e-commerce sales may want to focus on those adults who are weekly online shoppers. O B. A greater proportion of adults have purchased something online, but since a lesser percent of those are weekly online shoppers, the director of e-commerce sales may want to focus on those adults who are weekly online shoppers. O C. The information cannot be compared because it is derived from two different opinions. O D. Since a greater proportion of adults have purchased something online than are weekly online shoppers, the director of e-commerce sales may want to focus on those adults who have purchased something online.
a. Construct a 95% confidence interval estimate of the population proportion of adults who had bought something online. Sns (Round to four decimal places as needed.) b. Construct a 95% confidence interval estimate of the population proportion of online shoppers who are weekly online shoppers. Sns (Round to four decimal places as needed.) c. How would the director of e-commerce sales for a company use the results of (a) and (b)? O A. A greater proportion of adults have purchased something online, but those adults who are weekly online shoppers make larger purchases, so the director of e-commerce sales may want to focus on those adults who are weekly online shoppers. O B. A greater proportion of adults have purchased something online, but since a lesser percent of those are weekly online shoppers, the director of e-commerce sales may want to focus on those adults who are weekly online shoppers. O C. The information cannot be compared because it is derived from two different opinions. O D. Since a greater proportion of adults have purchased something online than are weekly online shoppers, the director of e-commerce sales may want to focus on those adults who have purchased something online.
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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Transcribed Image Text:A research center survey of 2,358 adults found that 1,946 had bought something online. Of these online shoppers, 1,204 are weekly online shoppers. Complete parts
(a) through (c) below.
a. Construct a 95% confidence interval estimate of the population proportion of adults who had bought something online.
STS (Round to four decimal places as needed.)
b. Construct a 95% confidence interval estimate of the population proportion of online shoppers who are weekly online shoppers.
<TS (Round to four decimal places as needed.)
c. How would the director of e-commerce sales for a company use the results of (a) and (b)?
O A. A greater proportion of adults have purchased something online, but those adults who are weekly online shoppers make larger purchases, so the director of
e-commerce sales may want to focus on those adults who are weekly online shoppers.
B. A greater proportion of adults have purchased something online, but since a lesser percent of those are weekly online shoppers, the director of e-commerce
sales may want to focus on those adults who are weekly online shoppers.
C. The information cannot be compared because it is derived from two different opinions.
D. Since a greater proportion of adults have purchased something online than are weekly online shoppers, the director of e-commerce sales may want to focus
on those adults who have purchased something online.
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