Question 4 (1 point) We have collected a sample of size 72. Assuming that we do...
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Question 4 (1 point) We have collected a sample of size 72. Assuming that we do not have the population standard deviation, if the standard error of the sample mean is 0.413, what is the standard deviation of the sample of size 72? 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 5 (1 point) Consider the following basic statistics describing a data set: n = 744, y = 2898.17, s = 40.40 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 6 (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 $9100 with a standard deviation of $2000. Find a 90% confidence interval for the mean daily income this parking garage will generate and report the upper limit. Note: 1- Only round your final answer to the nearest integer. Your Answer: Answer Question 7 (1 point) A study investigated how many pesticide particles were found on 25 organic apples. It was found that the sample contained on average 0.0667 ppm (particles per million) with a standard deviation of 0.0431 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 4 (1 point) We have collected a sample of size 72. Assuming that we do not have the population standard deviation, if the standard error of the sample mean is 0.413, what is the standard deviation of the sample of size 72? 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 5 (1 point) Consider the following basic statistics describing a data set: n = 744, y = 2898.17, s = 40.40 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 6 (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 $9100 with a standard deviation of $2000. Find a 90% confidence interval for the mean daily income this parking garage will generate and report the upper limit. Note: 1- Only round your final answer to the nearest integer. Your Answer: Answer Question 7 (1 point) A study investigated how many pesticide particles were found on 25 organic apples. It was found that the sample contained on average 0.0667 ppm (particles per million) with a standard deviation of 0.0431 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
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