The next 5 questions will be based on the following scenario: You are interested

Question

The next 5 questions will be based on the following scenario: You are interested in finding out whether a person's blood pressure can be affected by drinking green tea. You conducted a study that consisted of 100 volunteers: 50 of them would drink only green tea every day for a month and another 50 of them would drink any beverage they like but not green tea for the same time period. At the end of the month, you measured every person's blood pressure, and calculated the mean blood pressure for the group of 50 green tea drinkers and the mean blood pressure for the other group of 50 non-green tea drinkers. You want to know if there is a statistically significant difference in mean blood pressure levels between these two groups of people. Question 6 What is the appropriate null hypothesis for a two-tailed test of this study? Select one: a. H0: green_tea – not_green_tea = 0 b. H0: Mgreen_tea – Mnot_green_tea = 0 c. H0: green_tea not_green_tea d. H0: Mgreen_tea Mnot_green_tea

Explanation / Answer

as it is direction less hypothesis test ; option A is correct

a. H0: green_tea – not_green_tea = 0

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