Question

Response rates to web surveys are typically low, partially due to users starting but not finishing the survey. The factors that influence response rates were investigated. A survey company designed a study to verify this information. Web users were directed to participate in one of several surveys with different formats. One format utilized a welcome screen with a white background and the other one with a blue background. Data of the survey are given in OnlineHW.xlsx. Use three digits whenever necessary.

                            White welcome screen                  blue welcome screen

Completed              141                                                        37

Break off                49                                                          145

3) [30 pts.] Test if there is a difference in the break off rate when different color welcome screens are used. a =0.01.

1. [2.5 pts.] State the hypothesis

2. [2.5 pts.] What is the decision rule?

3. [15 pts.] Test statistic

4. [5 pts.] Decision and managerial decision

Answer 1