Mathematics, 14.03.2020 05:24, lnbrown9018
A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, can affect mental alertness. A sample of n = 9 college students is obtained and each studentâs 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 = 14 points after the meal with SS = 1152 for the difference scores.
a. Is there is significant difference in performance before eating versus after eating? Use a two-tailed test with α = .05.
b. Compute r2 to measure the size of the effect.
c. Write a sentence demonstrating how the outcome of the test and the measure of effect size would appear in a research report.
Answers: 1
Mathematics, 21.06.2019 12:30, ulilliareinhart2
What is the approximate total length of iron edging needed to create the square frame and the two diagonals?
Answers: 3
Mathematics, 21.06.2019 19:30, Robloxdemonduckyt
ĐŃf x = y and y= z, which statement must be true? ĐŸĐ°. -x = -2 b. x= z ĐŸŃ. âx = 2 od. 2= x
Answers: 3
A researcher would like to examine how the chemical tryptophan, contained in foods such as turkey, c...
Mathematics, 21.09.2020 05:01
Mathematics, 21.09.2020 05:01
Mathematics, 21.09.2020 05:01
Social Studies, 21.09.2020 05:01
History, 21.09.2020 05:01
Social Studies, 21.09.2020 05:01
Chemistry, 21.09.2020 05:01