subject
Mathematics, 03.04.2020 02:00 bikkiecuanas13

One such study examines the effect of imagery on muscle strength. In the study, 29 healthy individuals underwent four weeks of wrist immobilization to induce weakness. Half of the participants were randomly assigned to mentally imagine strong muscle contractions in that arm (without actually moving the arm). At the end of the four weeks, the percentage decrease in muscle strength was measured for all the participants, and we are testing to see if mean decrease is greater for people who do not use mental imaging when muscles are immobilized than for people who do. For the 15 participants not using any mental imagery, then mean percentage in muscle strength was 51.2 while for the 14 participants using imagery, it was 24.5.A randomization distribution of differences in means (mean decrease with no imagery minus mean decrease with imagery) using 1000 simulated samples.(a) State the null and alternative hypotheses.(b) Give the notation for the sample statistic.(c) Give the value for the sample statistic.(d) Use the randomization distribution to estimate the p-value.

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 16:50
Which three lengths could be the lengths of the sides of a triangle? 21 cm, 7 cm, 7 cm 9 cm, 15 cm, 22 cm 13 cm, 5 cm, 18 cm 8 cm, 23 cm, 11 cm
Answers: 2
question
Mathematics, 21.06.2019 19:30
Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 25, a standard deviation of 2.5, and margin of error of 5%
Answers: 2
question
Mathematics, 21.06.2019 20:00
Which of these tools or constructions is used to inscribe a hexagon inside a circle?
Answers: 1
question
Mathematics, 21.06.2019 22:40
Which of the following functions corresponds to the above sinusoid? a. 10 cos πx - 5 b. -5 sin x - 5 c. -10 cos πx/2 - 0.5 d. 10 sin πx - 5
Answers: 1
You know the right answer?
One such study examines the effect of imagery on muscle strength. In the study, 29 healthy individua...
Questions
question
Physics, 13.03.2020 00:03
Questions on the website: 13722362