Question

3) Suppose you want to determine the average height of college basketball players in NCAA Division I. In a random sample of 12 players, the sample average is 73.608 inches with a standard deviation of 5.7866 inches. What is the 95% confidence interval for the average height of all NCAA D-I players? Question 3 options: 1) (71.938, 75.278) 2) (-69.931, 77.285) 3) (69.931, 77.285) 4) (71.407, 75.809) 5) (69.968, 77.248) 2) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 11 customers and find that the average dollar amount spent per transaction per customer is $114.645 with a standard deviation of $18.2388. Create a 90% confidence interval for the true average spent for all customers per transaction. Question 2 options: 1) (104.678, 124.612) 2) (112.833, 116.457) 3) (-104.678, 124.612) 4) (109.146, 120.144) 5) (104.768, 124.522) 1) A customer wants to estimate the average delivery time of a pizza from the local pizza parlor. Over the course of a few months, the customer orders 23 pizzas and records the delivery times. The average delivery time is 26.62 with a standard deviation of 6.403. If the customer estimates the time using a 90% confidence interval, what is the margin of error? Question 1 options: 1) 0.6914 2) 2.2882 3) 1.3351 4) 2.2926 5) 1.764

          3) Suppose you want to determine the average height of college basketball players in NCAA Division I. In a random sample of 12 players, the sample average is 73.608 inches with a standard deviation of 5.7866 inches. What is the 95% confidence interval for the average height of all NCAA D-I players?

Question 3 options: 
1) (71.938, 75.278)
2) (-69.931, 77.285)
3) (69.931, 77.285)
4) (71.407, 75.809)
5) (69.968, 77.248)

2) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 11 customers and find that the average dollar amount spent per transaction per customer is $114.645 with a standard deviation of $18.2388. Create a 90% confidence interval for the true average spent for all customers per transaction.

Question 2 options: 
1) (104.678, 124.612)
2) (112.833, 116.457)
3) (-104.678, 124.612)
4) (109.146, 120.144)
5) (104.768, 124.522)

1) A customer wants to estimate the average delivery time of a pizza from the local pizza parlor. Over the course of a few months, the customer orders 23 pizzas and records the delivery times. The average delivery time is 26.62 with a standard deviation of 6.403. If the customer estimates the time using a 90% confidence interval, what is the margin of error?

Question 1 options: 
1) 0.6914
2) 2.2882
3) 1.3351
4) 2.2926
5) 1.764

Added by John C.

Question

Please give Ace some feedback