My questions are Question 2 How does using a Latin Square aid a researcher in counterbalancing a study Question 4 A researcher is interested in whether participating in sports positively influences self esteem in young girsl She identifies a group of girls who have not played sports before but are now planning to begin participating in organized sports The researcher gives them a 50 item self esteem inventory before they begin playing sports and administers the same test again after 6 months of playing sports The self esteem inventory is measured on an interval scale, with higher numbers indicating higher self esteem In addition, scores on the inventory are normally disctibuted The socres follow Before After 44 46 40 41 39 41 46 47 42 43 43 45 what statistical test should be used to analyze these data Identify Ha and ho for this study Conduct the appropriate analysis Should Ho be rejected What should the researher conclude If significant, compute and interpret the effect size If significant, draw a graph representing the data Determine the 95 confidence interval Question 6 Identify the statistical procedure that should be used to analyze the data from each of the following studies A study that investigates whether men or women (age 16 20) spend more money on clothing Assume the amount of money spent is normally distributed A study that investigates whether students perform better in a class that uses group learning, exercises versus a class that uses the traditional lecture method Two classes that learn the same information are selected Performacnce on a 50 item final exam at the end of the semester is mearsred In the (b) study above, researchers instead decide to use the same participants in both conditions Thus group learning exercises are used for half of the semester and traditional lectures for the other half of the semester These two procedures are counterbalanced across students to avoid design flaws As in the (b) study above, performance on a 50 item final exam is measured

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My questions are: Question 2: How does using a Latin Square aid a researcher in counterbalancing a study? Question 4: A researcher is interested in

My questions are:

Question 2: How does using a Latin Square aid a researcher in counterbalancing a study?

Question 4: A researcher is interested in whether participating in sports positively influences self-esteem in young girsl. She identifies a group of girls who have not played sports before but are now planning to begin participating in organized sports. The researcher gives them a 50-item self-esteem inventory before they begin playing sports and administers the same test again after 6 months of playing sports. The self-esteem inventory is measured on an interval scale, with higher numbers indicating higher self-esteem. In addition, scores on the inventory are normally disctibuted

The socres follow:

Before After

44 46

40 41

39 41

46 47

42 43

43 45

what statistical test should be used to analyze these data?
Identify Ha and ho for this study.
Conduct the appropriate analysis.
Should Ho be rejected? What should the researher conclude?
If significant, compute and interpret the effect size.
If significant, draw a graph representing the data.
Determine the 95% confidence interval

Question 6: Identify the statistical procedure that should be used to analyze the data from each of the following studies:

A study that investigates whether men or women (age 16-20) spend more money on clothing. Assume the amount of money spent is normally distributed.
A study that investigates whether students perform better in a class that uses group learning, exercises versus a class that uses the traditional lecture method. Two classes that learn the same information are selected. Performacnce on a 50-item final exam at the end of the semester is mearsred.
In the (b) study above, researchers instead decide to use the same participants in both conditions. Thus group learning exercises are used for half of the semester and traditional lectures for the other half of the semester. These two procedures are counterbalanced across students to avoid design flaws. As in the (b) study above, performance on a 50-item final exam is measured