Question 22 (1 point) A random sample of 81 credit sales in a department store showed an average sale of $68.00. From past data, it is known that the standard deviation of the population is $27.00. At 0.95 confidence interval, what is the margin of error? Question 22 options: a) 4.89 b) 5.88 c) 3.00 d) 4.50 e) None of the options Question 23 (1 point) A random sample of 49 lunch customers was taken at a restaurant. The average amount of time these customers stayed in the restaurant was 45 minutes with a standard deviation of 14 minutes. With a 95% probability, what is the size of the margin of error? Question 23 options: a) 3.2 b) 2.901 c) None of the options d) 2 e) 4.022 Question 24 (1 point) A random sample of 49 lunch customers was taken at a restaurant. The average amount of time these customers stayed in the restaurant was 45 minutes with a standard deviation of 14 minutes. Construct a 95% confidence interval for the true average amount of time customers spent in the restaurant. Question 24 options: a) 43 to 47 minutes b) 44.70 to 52.02 minutes c) 42.88 to 46.22 minutes d) None of the options e) 40.98 to 49.02 minutes Question 25 (1 point) The average monthly electric bill of a random sample of 256 residents of a city is $111 with a standard deviation of $32. Construct a 90% confidence interval for the mean monthly electric bills of all residents. Question 25 options: a) $109.28 to $116.71 b) None of the options c) $112.10 to $116.98 d) $107.71 to $114.29 e) $107.08 to $114.92 Question 26 (1 point) A sample of 225 elements from a population with a standard deviation of 75 is selected. The sample mean is 180. The 98% confidence interval for is ______________ Question 26 options: a) None of the options b) 175 to 185 c) 105 to 225 d) 165.6 to 194.4 e) 164.58 to 195.43 Question 27 (1 point) A new brand of chocolate bar is being market tested. A sample of 500 of the new chocolate bars were given to consumers to try. The consumers were asked whether they liked or disliked the chocolate bar. The responses indicated that 200 disliked the chocolate bar. What is the point estimate for the proportion of people who disliked the chocolate bar? Question 27 options: a) 0.20 b) 0.60 c) 0.80 d) 0.40 e) None of the options Question 28 (1 point) A new brand of chocolate bar is being market tested. A sample of 500 of the new chocolate bars were given to consumers to try. The consumers were asked whether they liked or disliked the chocolate bar. The responses indicated that 400 liked the chocolate bar. What is the point estimate for the proportion of people who liked the chocolate bar? Question 28 options: a) 0.75 b) 0.80 c) 0.20 d) 0.25 e) None of the options please answer within an hour a) 4.89 b) 5.88 c) 3.00 d) 4.50 e) None of the options.

1. Question 4: What factors effect the level of payment from both public (Medicare and Medicaid)
and private payers?
Question 5: Management must seek a balance in the level of spending for capital items
(equipment and facilities). What are the issues that impact this balance and why is a balance
important?