Question: please help me answer the question A consulting firm claimed that 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because
please help me answer the question
A consulting firm claimed that 65% of all e-commerce shoppers fail in their attempts to purchase merchandise on-line because Web sites are too complex. The claim was tested by taking a random sample of 60 online shoppers and assigning them each a different randomly selected e-commerce Web site to test. 45 reported sufficient frustration with their sites to deter making a purchase. The data was entered into STATISTIX and the following output was generated:
Hypothesis Test - One Proportion Sample Size 60 Successes 45 Proportion 0.75000 Null Hypothesis: P = 0.65 Alternative Hyp: P > 0.65 Difference 0.10000 Standard Error 0.05590 Z (uncorrected) 1.62 P 0.0522
It was desired to determine if the proportion of all e-commerce shoppers who fail in their attempts to purchase merchandise on-line because Web sites are too complex exceeds 65%. What rejection region should be used if they wish to test at alpha=.025?
a. Reject Ho if Z > 1.96 or Z < -1.96
b. Reject Ho if Z > 1.96
c. Reject Ho if Z > 1.282
d. Reject Ho if Z > 1.645
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