Question
The average monthly living cost of a family of three in a city in BC is reported to be $3250. Randomly chosen 32 families are
The average monthly living cost of a family of three in a city in BC is reported to be $3250. Randomly chosen 32 families are taken as a sample, which has a mean of $3380 and a standard deviation of $550.(a) Conduct a hypothesis test at 0.05 level of significance if the reported average living cost is plausible
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Essentials Of College Algebra
Authors: Margaret L Lial, John E Hornsby, David I Schneider, Teresa McGinnis
10th Edition
0321970632, 9780321970633
