Question: A marketing analyst at an internet book store is testing a new web design which she hopes will increase sales. She wants to randomly send

A marketing analyst at an internet book store is testing a new web design which she hopes will increase sales. She wants to randomly send n customers to the new site. She's hoping for an increase of 10% in sales from the new site She calculates a power of 0.43 for that increase from a sample of 150 customers. Explain to her why she should consider a larger sample size Choose the correct answer below. O A. A larger sample size would decrease the standard deviation, and making the sample standard deviation smaller increases the power without changing the alpha level. O B. A power of 0.43 means that she will correctly reject the alternative hypothesis of an increase less than half the time. She should use a larger sample size to increase the probability that she will come to the correct decision. O C. A larger sample size would decrease the power, which is the probability that a test will detect a false hypothesis. O D. A power of 0.43 means that she will correctly reject the null hypothesis of no increase less than half the time. She should use a larger sample size to increase the probability that she will come to the correct decision
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