Application A: A small retailer collected a sample (220) of its customer base. T

Question

Application A: A small retailer collected a sample (220) of its customer base. The retailer wants to know whether the sample taken is representative of her customer base. According to the customer base, seventy percent of its customers were female and thirty percent male. Indicated below is the sample distribution by gender. The sample contained 74 males and 146 females. Question 8: What is your gender? Gender Observed N Expected N Residual Male Female 74 146 154 -8 Test Statistic Chi Square Statistic df Significance Level " Zero cells have expected frequencies less than 5. The Minimum expected cell frequency is 66. 1.385 239 Interpret these Chi Square Results: If you compare the actual frequency (N) to the expected (N), at the 95% confidence level, what do you conclude about the sample. Explain your answer.

Explanation / Answer

Clearly the P value for the chi-square test is greater than the significance level for the test that is 0.05 hence we can not reject the null hypothesis.thus we have no evidence to conclude that the sample taken is representative of the customer base

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