TABLE 9-8
One of the biggest issues facing e-retailers is the ability to turn browsers into buyers. This is measured by the conversion rate, the percentage of browsers who buy something in their visit to a site. The conversion rate for a company's web site was 10.1% The web site at the company was redesigned in an attempt to increase its conversion rates. Samples of 200 browsers at the redesigned site were selected. Suppose that 24 browsers made a purchase. The company officials would like to know if there is evidence of an increase in conversion rate at the 5% level of significance.
-Referring to Table 9-8, the null hypothesis will be rejected if the test statistics is
A) greater than 1.645.
B) greater than - 1.645.
C) less than 1.645.
D) less than - 1.645.

Question

TABLE 9-8 
One of the biggest issues facing e-retailers is the ability to turn browsers into buyers. This is measured by the conversion rate, the percentage of browsers who buy something in their visit to a site. The conversion rate for a company's web site was 10.1% The web site at the company was redesigned in an attempt to increase its conversion rates. Samples of 200 browsers at the redesigned site were selected. Suppose that 24 browsers made a purchase. The company officials would like to know if there is evidence of an increase in conversion rate at the 5% level of significance.
-Referring to Table 9-8, the null hypothesis will be rejected if the test statistics is
A) greater than 1.645.
B) greater than - 1.645.
C) less than 1.645.
D) less than - 1.645.

Quizplus · Accepted Answer

The null hypothesis will be rejected if the test statistic is greater than 1.645, which corresponds to the critical value for a one-tailed test at the 5% significance level.

TABLE 9-8 One of the Biggest Issues Facing E-Retailers Is the Ability