I do not under stand the differences between each and i have no idea how to do this review.
Help would be greatly appreciated!!!!!!!!!!!
A researcher wished to test the effect of the addition of extra calcium to yogurt on the "tastiness" of yogurt. A group of 57 adult volunteers participated in the survey. Two different yogurts, one with extra calcium and one without the added calcium, were created from the same batch of yogurt. Each volunteer tasted both of the yogurts and rated the taste on a 10-point scale with 1 being "very unpleasant" and 10 being "very pleasant." The order of the yogurts for the tasting was determined randomly, so some volunteers had the extra calcium yogurt first and some had the plain yogurt first. To ensure a clear the palate for the volunteers, each volunteer ate dry crackers and drank water before each tasting.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
A researcher wished to test the effect of the addition of extra calcium to yogurt on the "tastiness" of yogurt. Two different yogurts, one with extra calcium and one without the added calcium, were created from the same batch of yogurt. A group of 84 adult volunteers participated in the survey, and 42 were assigned to the extra calcium group and 42 were assigned to the plain yogurt group. The first group tasted the yogurt containing extra calcium and the second group tasted the yogurt without the added calcium. Both groups rated the taste on a 10-point scale with 1 being "very unpleasant" and 10 being "very pleasant."
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
A researcher was interested in comparing the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A group of 48 volunteers was randomly divided into two groups. The low group did a standard step-aerobics workout at the low height; the high group did the same workout but at the high step height. Heart rates were measured at the end of the workout for each of the subjects.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
Researchers want to compare two different designs of running shoes. Twenty runners, who volunteered to participate in the study, are asked to run a 10-kilometer race on each of two consecutive Saturdays. In one of the races, the runners wear one design of shoe and in the other race the second design. Which design they wear in which race is determined randomly. All runners are asked to run their best race and their times are taken.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
Help would be greatly appreciated!!!!!!!!!!!
A researcher wished to test the effect of the addition of extra calcium to yogurt on the "tastiness" of yogurt. A group of 57 adult volunteers participated in the survey. Two different yogurts, one with extra calcium and one without the added calcium, were created from the same batch of yogurt. Each volunteer tasted both of the yogurts and rated the taste on a 10-point scale with 1 being "very unpleasant" and 10 being "very pleasant." The order of the yogurts for the tasting was determined randomly, so some volunteers had the extra calcium yogurt first and some had the plain yogurt first. To ensure a clear the palate for the volunteers, each volunteer ate dry crackers and drank water before each tasting.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
A researcher wished to test the effect of the addition of extra calcium to yogurt on the "tastiness" of yogurt. Two different yogurts, one with extra calcium and one without the added calcium, were created from the same batch of yogurt. A group of 84 adult volunteers participated in the survey, and 42 were assigned to the extra calcium group and 42 were assigned to the plain yogurt group. The first group tasted the yogurt containing extra calcium and the second group tasted the yogurt without the added calcium. Both groups rated the taste on a 10-point scale with 1 being "very unpleasant" and 10 being "very pleasant."
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
A researcher was interested in comparing the effect of two stepping heights (low and high) on heart rate in a step-aerobics workout. A group of 48 volunteers was randomly divided into two groups. The low group did a standard step-aerobics workout at the low height; the high group did the same workout but at the high step height. Heart rates were measured at the end of the workout for each of the subjects.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work
Researchers want to compare two different designs of running shoes. Twenty runners, who volunteered to participate in the study, are asked to run a 10-kilometer race on each of two consecutive Saturdays. In one of the races, the runners wear one design of shoe and in the other race the second design. Which design they wear in which race is determined randomly. All runners are asked to run their best race and their times are taken.
Identify the design of this study.
A.paired t-test of a mean
B.two-sample t-test of means
C.either test will work