Question

Question 1 thans What is the research the the bank HR: Artifical Sweetener Natural Sugar Question 2 Aresearcher wants to explore the differences in health effects from two different types of Shelpothesis that artificial w h ow long term health benefits than what is helyeth a n Ho Artifical Sweetener Natural Question 3 Question 3 certo Question 4 PIC-COLLAGE

Answer 1

Question 1

The answer will be a) Less than

Reason: Since, she hypothesizes that the artificial sweetener has lower long term health benefits than natural sugar, the mean of the former must be greater than or equal to that of the latter for the null hypothesis. Hence, for the research hypothesis or the alternative hypothesis, the mean of the artificial sweetener must be less than that of the natural sugar.

Question 2

The answer will be d) Greater than or equal to

Reason: Since, the researcher hypothesizes that the artificial sweetener has lower long term health benefits than the natural sugar, the research hypothesis must be that the mean of the artificial sweetener is less than that of the natural sugar. Hence, the null hypothesis must be that the mean of the artificial sweetener is greater than or equal to that of the natural sugar.

Question 3

The answer will be b) Independent samples

Reason: Since the researcher compares two different groups of people- one who consumed artificial sweetener for majority of their lives and the other who consumed natural sugar for majority of their lives- there exists no correlation or dependency among the two groups. Hence, she can conduct the t-test for independent samples.

Question 4

The answer will be c) Paired samples

Reason: Since the researcher takes a group of people and have them consume artificial sweetener for a year and measure their health benefits and again takes the same group of people and have them consume natural sugar for a year and measure their health benefits, there exists correlation or dependency between the samples. Hence, she can conduct t-test for paired samples.