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Compute test statistic for null and alternative hypothesis

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An airline company would like to know if the average number of passengers on a flight in November is less than the average number of passengers on a flight in December. The results of random sampling are printed below:

November: n1=75 hours, x1_bar=476, s1=9

December: n2=80 x2_bar=482, s2=7

The null and alternative hypothesis used is: Ho: mu1-mu2=0 vs. Ha:mu1-mu2<0

Compute the test statistic for the null and alternative hypothesis? _________

Reference no: EM131974946

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