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

question 40

Essay

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 website was 10.1%. The website at the company was redesigned in an attempt to increase its conversion rates. A samples of 200 browsers at the redesigned site was 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 lowest level of significance at which the null hypothesis can be rejected is ________.

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Definitions:

Normal Approximation

A mathematical method used to approximate the binomial distribution with the normal distribution when the sample size is large and the probability of success is not too close to 0 or 1.

Binomial Distribution

A probability distribution describing the number of successes in a fixed number of binary, independent trials given a specific success probability.

Random Sample

A group selected from a broader population where every individual has the same likelihood of being chosen.

Uniformly Distributed

A type of distribution where all outcomes are equally likely; every variable has the same frequency or probability.