a.What are the null and alternate hypotheses? (Choose one)

A) H₀: _{Ocean Drive}= _{Rio Rancho}H₁: _{Ocean Drive Rio Rancho}

B) H₀: _{Ocean Drive Rio Rancho}H₁: _{Ocean Drive}= _{Rio Rancho}

C) H₀: _{Ocean Drive}= _{Rio Rancho}H₁: _{Ocean Drive}= _{Rio Rancho}

b.Compute the test statistic.(Negative amounts should be indicated by a minus sign. Round intermediate answers to 2 decimal places and round the final answer to 3 decimal places.)

c.Compute thep-value.NOTE: P-value calculators are available through online search.(Round your answer to 4 decimal places.)

d.What is your decision regarding the null hypothesis?

A) RejectH0

B)Do not rejectH0

e.Interpret the result. (choose the correct word that completes this statement)

It is reasonable to conclude there is (difference, no difference) in the mean number of cars in the two lots.

The city of Laguna Beach operates two public parking lots. The Ocean Drive parking lot can accommodate up to 125 cars and the Rio Rancho parking lot can accommodate up to 130 cars. City planners are considering increasing the size of the lots and changing the fee structure. To begin, the Planning Office would like some information on the number of cars in the lots at various times of the day. A junior planner ofcer is assigned the task of visiting the two lots at random times of the day and evening and counting the number of cars in the lots. The study lasted over a period of1 month. Following is the number of cars in the lots for 25 visits of the Ocean Drive lot and 28 visits of the Rio Rancho lot. Assume the population standard deviations are equal. Ocean Drive 89 115 93 63 121 53 Rio Rancho 128 110 81 92 66 69 105 124 79 81 126 100 113 115 82 114 77 67 114 113 51 53 93 107 75 69 40 62 118 95 94 77 105 121 45 80 106 88 84 107 91 64 71 90 54 74 129 Is it reasonable to conclude that there is a difference in the mean number of cars in the two lots? Use the .05 significance level