6. You, as an owner of a large casino resort, are interested in your employees’ health. You are advised by your executive chef to adapt a healthy cafeteria menu for your employee cafeteria. To test if this new menu will actually help your employees losing weight, you take a random sample of 15 employees and measure their weight before and after the change to new healthy menu. Data is provided in file HealthyMenu.sav.
a. Which statistical analysis is the most appropriate to answer your question.
b. What is your response to the main question asked above based on the results? Show output, highlight figures and write your answer.
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Ha1: there is significant difference in the population means of two groups. μ1-μ2≠0 (Two tailed test)
Ha2: population mean of sample 1 is less than that of sample 2. μ1-μ2<0 (Left tailed test)
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