A researcher would like to examine how the chemical tryptophan contained in food such as turkey can affect mental alertness a sample of any equals 25 college students as a team and each students performance on a familiar video game as measured before and after eating traditional Thanksgiving dinner including roast turkey. The average score dropped by M equals 16 points after the meal with SS equals 5400 for the different scores provide your answers in the space is provided and provide exactly what you were asked forQuestion 40
SS =5400 for the difference scores. Provide your answers in the spaces provided and provide exactly what you are asked for; do NOT show your work in the blanks. (12 points)
a. Is there is significant difference in performance before eating versus after eating? Use a two-tailed test with a=.05.
The estimated standard error for these data is
and the corresponding t value is
(report the t value with two decimals; Otherwise you will lose all marks on
this).
b. Compute 95%Cl for the average dropped score to measure the effect size.
For average dropped score, 95%Cl minimum is
and 95%Cl maximum is
(Report both with three decimals; Otherwise you will lose all marks on this).
c. When writing the conclusion sentence in the research report, which one is correct for how the p value should be reported?
Write 1 for p<.05 or 2 for p>.05
Do not write anything else).
Good luck.
Question 40
12 pts
A researcher would like to examine how the chemical tryptophan,contained in foods such as turkey,can affect mental alertness. A sample of n =25 college students is obtained and each student's performance on a familiar video game is measured before and after eating a traditional Thanksgiving dinner including roast turkey. The average score dropped by M=16 points after the meal with SS -5400 for the difference scores.Provide your answers in the spaces provided and provide exactly what you are asked fordo NOT show your work in the blanks.(12 points)
a. Is there is significant difference in performance before eating versus after eating? Use a two-tailed test with a =.05. The estimated standard error for these data is and the corresponding t value is (report the t value with two decimals;Otherwise you will lose all marks on
this).
b. Compute 95%Cl for the average dropped score to measure the effect size.
For average dropped score,95%CI minimum is
and 95%CI maximum is
(Report both with three decimals; Otherwise you will lose all marks on this).
c. When writing the conclusion sentence in the research report,which one is correct for how the p value should be reported?
Write1 for p.05 or2 for p>.05
(Do not write anything else).