Online shopping. Online shopping statistics are routinely reported by www.shop.o

Question

Online shopping. Online shopping statistics are routinely reported by www.shop.org. Of interest to many online retailers are gender-based differences in shopping preferences and behaviors. The average monthly online expenditures are reported for males and females: Male 45 $350 Female 45 $310 $80 Mean Standard deviation $95 You suspect that male shoppers are spending more than the female shoppers.Which among the following test should you use? two sample z test two sample pooled-t test (equal population standard deviation) two sample t test with unequal population standard deviation paired t test

Explanation / Answer

Answer:- paired t test

Here, given information about Male and Female .

Explanation:

"Paired samples" are when observations are made on pairs of units which are similar in some respect. Usually one treatment is applied to one member of each pair and not to the other which serves as the control. Pairing (or matching as it is sometimes called) can be done on the basis of age, sex, behaviour or any other factor that might be expected to have an effect on the response variable. The purpose of pairing is to reduce the variability in the response variable that you are measuring. The more similar the two individuals are, the more effective the pairing.

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