Random Samples of Tuesday and Friday Withdrawals from a College-Campus

question 17

Essay

Random samples of Tuesday and Friday withdrawals from a college-campus ATM were compared to see whether or not there was a difference in the means. The results shown below are from MegaStat. Analyze these results thoroughly.
Hypothesis Test: Independent Groups (t-test, unequal variance)

$\begin{array}{|r|r|r|}\hline Friday & Tuesday\\\hline 82.40 & 41.00 &mean\\\hline 75.35 & 35.53&std. dev. \\\hline 25 & 20 & n\\\hline\end{array}$

$35$$\quad$$\quad$$\quad$ df
$41.400$ $\quad$ difference (Friday - Tuesday)
$17.035$ $\quad$ standard error of difference
0 $\quad$$\quad$$\quad$ hypothesized difference
$2.430$$\quad$$\quad$ t
$.0204$$\quad$ p-value (two-tailed)

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