question(14): A researcher wanted to know whether children who live in two different neighbourhoods( Foresthill and Willowdale ) got different amount of excercise.Children were choosen(40 from each). and filled the daily excerise report. The number of minutes were tallied and recorded. The researcher the conducted an independent sample t test using MS-EXCELL .The result are given below. Inspect the output .Did the researcher conduct their t test assuming equal variance or not ?
question(14):
A researcher wanted to know whether children who live in two different neighbourhoods( Foresthill
and Willowdale ) got different amount of excercise.Children were choosen(40 from each). and filled
the daily excerise report. The number of minutes were tallied and recorded. The researcher
the conducted an independent sample t test using MS-EXCELL .The result are given below. Inspect
the output .Did the researcher conduct their t test assuming equal variance or not ?
Write out step 5 by including both the formal answer and the conclusion.
THe five steps are
Step1 : state the hypothesis and identify the claim.
step2 : compute the test value.
step 3: compute the critical value
step4: make the decision(reject or not reject)
step5 :summarize the result.
NOTE: you only need to submit step 5.
Asume (alpha=.05)
round answer to two decimal places.
MS-EXCELL OUTPUT
Willowdale Forresthill
mean 108.65 86.93
variance 2601.67 1238.99
observations 40 40
pooled variance 1920.33
hypothesized
mean difference 0
df 78
t statistic 2.22
P(T<=t) (one tail ) .01
t critical value(one tail) 1.66
P(T<=t) (two tail) 0.03
t critical(two tail) 1.99
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