Researchers are interested in the effect of pet companionship on depression in elderly adults. They randomly select 25 participants from the target population and record their depression scores before and after spending a month with a dog (a higher score indicates a higher level of depression). The researchers then compute the difference scores for each participant (difference = after-before). The mean of differences is 1 and the standard deviation of differences is 2. Can the researchers conclude that there is an effect of pet companionship on depression in elderly adults? Conduct the appropriate statistical test (two-tailed) with a = .05. Based on the information provided above, which statistical test seems most appropriate? one sample t test Oz test O independent samples t test dependent samples t test
Researchers are interested in the effect of pet companionship on depression in elderly adults. They randomly select 25 participants from the target population and record their depression scores before and after spending a month with a dog (a higher score indicates a higher level of depression). The researchers then compute the difference scores for each participant (difference = after-before). The mean of differences is 1 and the standard deviation of differences is 2. Can the researchers conclude that there is an effect of pet companionship on depression in elderly adults? Conduct the appropriate statistical test (two-tailed) with a = .05. Based on the information provided above, which statistical test seems most appropriate? one sample t test Oz test O independent samples t test dependent samples t test
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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![Researchers are interested in the effect of pet companionship on depression in elderly adults. They randomly select 25 participants from the target population and record their
depression scores before and after spending a month with a dog (a higher score indicates a higher level of depression). The researchers then compute the difference scores
for each participant (difference after before). The mean of differences is - 1 and the standard deviation of differences is 2. Can the researchers conclude that there is an
effect of pet companionship on depression in elderly adults? Conduct the appropriate statistical test (two-tailed) with a = .05.
Based on the information provided above, which statistical test seems most appropriate?
one sample t test
O z test
independent samples t test
O dependent samples t test](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7a520971-fd90-49dd-bfdc-9027208d76cd%2Faead03b4-75a1-4a39-97be-c8819b5b42fd%2Fgw7gpvu_processed.png&w=3840&q=75)
Transcribed Image Text:Researchers are interested in the effect of pet companionship on depression in elderly adults. They randomly select 25 participants from the target population and record their
depression scores before and after spending a month with a dog (a higher score indicates a higher level of depression). The researchers then compute the difference scores
for each participant (difference after before). The mean of differences is - 1 and the standard deviation of differences is 2. Can the researchers conclude that there is an
effect of pet companionship on depression in elderly adults? Conduct the appropriate statistical test (two-tailed) with a = .05.
Based on the information provided above, which statistical test seems most appropriate?
one sample t test
O z test
independent samples t test
O dependent samples t test
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