Exercise 9-56
A shopping centre wants to examine the amount of space requiredfor parking. Studies indicated that 68% of staff and shoppers usepublic transportation. A survey of 1,002 was taken, and 663responded that they used public transportation.
a. State the null hypothesis and the alternatehypothesis. Round the final answers to 2 decimalplaces.
H0: p =Â Â Â Â Â Â Â Â Â
H1: p ≠        Â
b. State the decision rule for 0.10significance level. (Negative answer should be indicated bya minus sign. Round the final answers to 2 decimalplaces.)
Reject H0 if z > or z< .
c. Compute the value of the test statistic.(Negative answer should be indicated by a minus sign. Roundthe final answer to 2 decimal places.)
Value of the test statistic        Â
d. At the 0.10 significance level, is itreasonable to conclude that the survey results indicate achange?
H0. There is evidence to indicate that theresults have changed.
