SOLUTION: M10 #7
A survey of 30 people was conducted to compare their self-reported height to their actual height. The difference between reported height and actual height was calculated.
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A survey of 30 people was conducted to compare their self-reported height to their actual height. The difference between reported height and actual height was calculated.
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Question 1120382: M10 #7
A survey of 30 people was conducted to compare their self-reported height to their actual height. The difference between reported height and actual height was calculated.
You're testing the claim that the mean difference is greater than 0.9.
From the sample, the mean difference was 0.95, with a standard deviation of 0.68.
Calculate the test statistic, rounded to two decimal places.
You can put this solution on YOUR website! the t=difference of mean from 0.95 divided by s/sqrt(n)
This is 0.05/0.68/sqrt(30), or 0.05*sqrt(30)/0.68
That is 0.40
