After further data collection the marketing manager (Exercise X6.4) decides to revisit the data analysis and changes
Question:
After further data collection the marketing manager (Exercise X6.4) decides to revisit the data analysis and changes the type of test to a t-test.
(i) Explain under what conditions a t-test could be used rather then the z-test,
(ii) Calculate the corresponding p-value if the sample size was 13 and the test statistic equal to 2.03.
From this result what would you conclude?
Data from Exercises 6.4
A marketing manager has undertaken a hypothesis test to test for the difference between accessories purchased for two different products. The initial analysis has been performed and an upper one tail z-test has been chosen. Given that the z value was calculated to be 3.45 find the corresponding p-value. From this result what would you conclude?
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Step by Step Answer:
i A ttest can be used instead of a ztest when the population standard deviation is unknownThis ...View the full answer
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