Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

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

image text in transcribed
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

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Combinatorial Geometry In The Plane

Authors: Hugo Hadwiger, Hans Debrunner, Victor Klee

1st Edition

048679993X, 9780486799933

More Books

Students also viewed these Mathematics questions