Question 15 (1 point) Hoping to attract more shoppers downtown, a city builds a new public parking garage in the central business district. The city plans to pay for the structure through parking fees. For a random sample of 46 weekdays, daily fees collected averaged $11400 with a standard deviation of $1300. Find a 90% confidence interval for the mean daily income this parking garage will generate and report the lower limit. Note: 1- Only round your final answer to the nearest integer. Your Answer: Answer Question 16 (1 point) Consider the following basic statistics describing a data set: n = 690, y = 3212.56, s = 91.14 Calculate the standard error of the sample mean. Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places. Your Answer: Answer Question 17 (1 point) A study investigated how many pesticide particles were found on 25 organic apples. It was found that the sample contained on average 0.0772 ppm (particles per million) with a standard deviation of 0.0311 ppm. What is the lower limit of the 99% confidence interval? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places. Your Answer: Answer Question 17 (1 point) A study investigated how many pesticide particles were found on 25 organic apples. It was found that the sample contained on average 0.0772 ppm (particles per million) with a standard deviation of 0.0311 ppm. What is the lower limit of the 99% confidence interval? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places. Your Answer: Answer Question 18 (1 point) Consider the following basic statistics describing a data set: n = 30, y = 7.77, s= 1.83 What is the margin of error for this calculation for a 99% level of confidence? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places. Your Answer: Answer Question 18 (1 point) Consider the following basic statistics describing a data set: n = 30, y = 7.77, s= 1.83 What is the margin of error for this calculation for a 99% level of confidence? Note: 1- Round your intermediate numbers to 4 decimal places. 2- Round you final answer to 3 decimal places. Enter your final answer to 3 decimal places. Your Answer: Answer