A sleep researcher hypothesizes that more sleep is related
feeling less tired. Below are partial SPSS results
with α = 0.01 of the analysis for a sample of participants at a
sleep center.
a) Compute the appropriate test statistic(s) to
make a decision about H0.
(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)
Critical value = ; Test statistic =
Decision: ---Select--- Reject H0 Fail to reject H0
b) Compute the corresponding effect size(s) and
indicate magnitude(s).
If not appropriate, input and/or select "na" below.
Effect size = ; ---Select--- na trivial
effect small effect medium effect large effect
c) Make an interpretation based on the
results.
More sleep is related to feeling more tired.More sleep is related to feeling less tired. Sleep is not related to feeling tired.
A sleep researcher hypothesizes that more sleep is related feeling less tired. Below are partial SPSS...
A sleep researcher hypothesizes that more sleep is related feeling less tired. Below are partial SPSS results with α = 0.10 of the analysis for a sample of participants at a sleep center. Sleep Tired Sleep Pearson Correlation Sig. (2-tailed) N 1 13 0.804 −−− 13 Tired Pearson Correlation Sig. (2-tailed) N 0.804 −−− 13 1 13 a) Compute the appropriate test statistic(s) to make a decision about H0. (Hint: Make sure to write down the null and alternative hypotheses...
A sleep researcher hypothesizes that sleep is related to feelings of tiredness. Below are partial SPSS results with α = 0.01 of the analysis for a sample of participants at a sleep center. a) Compute the appropriate test statistic(s) to make a decision about H0. (Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.) Critical value = ; Test statistic = Decision: ---Select--- Reject H0 Fail to reject H0 b) Compute the corresponding effect size(s)...
A sleep researcher hypothesizes that sleep is related to feelings of tiredness. Below are partial SPSSresults with an α of 0.05 of the analysis for a sample of participants at a sleep center.SleepTiredSleepPearson Correlation Sig. (2-tailed) N1 130.804 −−− 13TiredPearson Correlation Sig. (2-tailed) N0.804 −−− 131 13a) Compute the appropriate test statistic(s) to make a decision about H0.(Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.)Critical value = ; Test statistic = Decision: ---Select--- Reject H0 Fail to reject H0 b) Compute the corresponding effect size(s) and indicate magnitude(s).If not appropriate, input and/or select "na"...
A social psychologist hypothesizes that using Facebook is related to depression. The psychologist collects hours on Facebook and depression score data from a sample of depression patients from a clinic. What can the psychologist conclude with α = 0.05? Facebook Depression 3 3 4 5 4 3 4 2 3 4 0 4 9 6 1 11 2 5 a) What is the appropriate statistic? ---Select--- na Correlation Slope Chi-Square Compute the statistic selected above: b) Compute the appropriate test...
A child psychologist hypothesizes that locus of control predicts motivation in pre-adolescent children. To investigate this, the psychologist has a sample of pre-adolescent participants fill out a questionnaire that measures locus of control and motivation. Below are the data. What can the psychologist conclude with α = 0.05? Locus Motivation 15 16 15 14 11 12 18 13 21 23 15 14 22 13 21 14 a) What is the appropriate statistic? ---Select--- na Correlation Slope Chi-Square Compute the statistic...
A child psychologist hypothesizes that motivation predicts locus of control in pre-adolescent children. To investigate this, the psychologist has a sample of pre-adolescent participants fill out a questionnaire that measures locus of control and motivation. Below are the data. What can the psychologist conclude with an α of 0.10? locus motivation 15 16 15 14 19 12 18 13 21 23 15 14 22 13 21 14 a) What is the appropriate statistic? ---Select--- na, Correlation, Slope, Chi-Square Compute the...
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Dr. Stambaugh hypothesizes that a novel anxiety drug will affect memory. To examine this, the drug is administered to a random sample of 23 trained rats. The rats were then placed in a maze and timed on how long it took them to complete it. The average completion time was 47 seconds. Normal rats have an average completion time of 44 seconds with a standard deviation of 14 seconds. What can Dr. Stambaugh conclude with α = 0.01? a) State...