5 part a) The business college computing center wants todetermine the proportion of business students who have personalcomputers (PC's) at home. If the proportion exceeds 35%, then thelab will scale back a proposed enlargement of its facilities.Suppose 300 business students were randomly sampled and 85 havePC's at home. Find the rejection region for this test using α =0.10.

A) Reject H0 if z > 1.645 or z < -1.645.

B) Reject H0 if z = 1.28.

C) Reject H0 if z < -1.28.

D) Reject H0 if z > 1.28.

part b) A random sample of 10 parking meters in a resortcommunity showed the following incomes for a day. Assume theincomes are normally distributed. Find the 95% confidence intervalfor the true mean. $3.60 $4.50 $2.80 $6.30 $2.60 $5.20 $6.75 $4.25$8.00 $3.00

A) ($1.35, $2.85)

B) ($3.39, $6.01) C)

($2.11, $5.34) D)

($4.81, $6.31)

part c) Health care issues are receiving much attention in bothacademic and political arenas. A sociologist recently conducted asurvey of senior citizens whose net worth is too high to qualifyfor government health care but who have no private healthinsurance. The ages of 25 uninsured senior citizens were asfollows:

71 76 69 79 89 77 64 92 68 93 72 95 79 65 84 66 71 84 73 76 6390 78 67 85 Find Q1 of the data.

A) 68

B) 76.5

C) 69

D) 68.5

part d) If one card is drawn from a standard 52 card playingdeck, determine the probability of getting a ten, a king or adiamond. Round to the nearest hundredth.

A) 0.37

B) 0.31

C) 0.29

D) 0.40