A travel association claims that the mean daily meal co

A travel association claims that the mean daily meal cost for two adults traveling together on vacation is $125. A random sample of 25 such groups of adults has a mean daily meal cost of $120 and a standard deviation of $6. is there enough evidence to reject the claim at a=.05?

B). calculate the standardized test statistic:

t= (round to 3 decimal places)

Solution

H0: mean daily meal cost for two adults traveling together on vacation =125

H1: mean    daily meal cost for two adults traveling together on vacation  not equal to 125


(standardized test statistic)=t= (120-125)/(6/sqrt 25)= -4.167


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