Scenario:A researcher wants to test the effect of amount of sleep onmemory. There are four groups: 2 hours of sleep, 4 hours ofsleep, 6 hours of sleep, and 8 hours of sleep. Each groupcontains 5 people, for a total sample size of 20. Participants inthe four groups are allowed to sleep only the number of hoursassigned to the group the night before the test. On the day ofthe test, they are given a series of numbers and are tested ontheir ability to remember the numbers. The scores on thememory test are shown below:Group 1, 2 hours sleep: 2, 3, 4, 5, 6 (Mean: 4)Group 2, 4 hours sleep: 2, 3, 4, 7, 8 (Mean: 4.8)Group 3, 6 hours sleep: 9, 10, 10, 11, 13 (Mean: 10.6)Group 4, 8 hours sleep: 9, 10, 10, 10, 13 (Mean: 10.4)ss dfSourceMSFCrit. F(.05)62.5833 18.14Between 187.753.24Within55.216Total242.95Tukey's HSD Test [.05] = 3.36 Directions:Read the scenario to the right, then fill in the blanks inthe table to the lower right and answer the questionsbelow by selecting the correct answer.1: Compare the F value to the critical value givenin the table. Is the result of this test statisticallysignificant?YesNo2: Should a Tukey's HSD post hoc test be performed?YesNo3: According to the HSD results, is there asignificant difference between group 1 and group 2?YesNo4: According to the HSD results, is there asignificant difference between group 1 and group37YesNo

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A researcher wants to test the effect of amount of sleep on memory. There are four groups: 2 hours of sleep, 4 hours of sleep, 6 hours of sleep, and 8 hours of sleep. Each group contains 5 people, for a total sample size of 20. Participants in the four groups are allowed to sleep only the number of hours assigned to the group the night before the test. On the day of the test, they are given a series of numbers and are tested on their ability to remember the numbers. The scores on the memory test are shown below: Group 1, 2 hours sleep: 2, 3, 4, 5, 6 (Mean: 4) Group 2, 4 hours sleep: 2, 3, 4, 7, 8 (Mean: 4.8) Group 3, 6 hours sleep: 9, 10, 10, 11, 13 (Mean: 10.6) Group 4, 8 hours sleep: 9, 10, 10, 10, 13 (Mean: 10.4)

A researcher wants to test the effect of amount of sleep on memory. There are four groups: 2 hours of sleep, 4 hours of sleep, 6 hours of sleep, and 8 hours of sleep. Each group contains 5 people, for a total sample size of 20. Participants in the four groups are allowed to sleep only the number of hours assigned to the group the night before the test. On the day of the test, they are given a series of numbers and are tested on their ability to remember the numbers. The scores on the memory test are shown below: Group 1, 2 hours sleep: 2, 3, 4, 5, 6 (Mean: 4) Group 2, 4 hours sleep: 2, 3, 4, 7, 8 (Mean: 4.8) Group 3, 6 hours sleep: 9, 10, 10, 11, 13 (Mean: 10.6) Group 4, 8 hours sleep: 9, 10, 10, 10, 13 (Mean: 10.4)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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