Questions 24-26 In each of the following two scenarios, state whether the approp
ID: 3322224 • Letter: Q
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Questions 24-26 In each of the following two scenarios, state whether the appropriate analysis is a two-sample t-test or a matched pair t-test. Circle your answer in each 24. Two methods of measuring babies in the intensive care unit are compared to see which provides a more precise measurement. Forty babies and twenty nurses are found for the study. Each nurse will measure two different babies, one under each measurement method. 4 pts) (a) two-sample t-test b) matched pair t-test 25. Two recipes for chocolate cake are to be compared to see which one provides a better taste, Five cakes will be baked using recipe 1 and five cakes will be baked using recipe 2. These will be baked in random order. Each of the ten finished cakes will be given to one of 10 study volunteers who will taste and rate the cake. 4 (a) two-sample t-test (b) matched pair t-test 26. To investigate if the style of banner ad is associated with how often consumers click on these ads, Google developed two distinct banner ad styles. On the day of the experiment, half of Google users were given style 1 and half were given style 2. The frequency of clicking was recorded for each style. 4p (a) two-sample t-test (b) matched pair t-testExplanation / Answer
A two sample t test is used when we have to find if there is a significant difference between the 2 groups
A matched pair t test is used when data can be presented in pairs
ie the same data point can be seen in before and after a certain condition
24 is (a) as we are taking 2 diffrent babies each time
25 (a) as there are clearly 2 groups cakes baked in recipe 1 and recipe 2
26 (a) as there are 2 ads and 2 sets of diffrent people
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