Suppose that you are the marketing director of a retail company. Your company creates, prints and distributes weekly price promotion leaflets to attract new and existing shoppers. To encourage people to read the leaflets, they contain a crossword puzzle every week. There is a box in every store where the solution can be placed, and you reward 15 randomly selected respondents with a EUR 15,000 voucher. On average, 8,530 people solve the crossword and place the solution to the box, with a standard deviation of 2,105.

You would like to increase the attractiveness of the crossword puzzle and decide to provide a EUR 25,000 voucher to the selected 15 people. The first 10 weeks data show that on average 9,100 people solved the crossword.

• Execute a hypothesis test in Excel on the increase of the number of people solving the crossword.
• Calculate the p-value in Excel.

 Evaluate (on 5% significance level) whether there is enough statistical evidence that the number of people solving the crossword has increased.

Answer rating: 100% (QA)

Answer DateI Answees 15000 voucher EUR Noof people ... View the full answer