The wait times in line at a grocery store are roughly distributed normally with an average wait time of 7.6 minutes and a standard deviation of 1 minute 45 seconds. What is the probability that the wait time is less than 7.9 minutes? What will the probability look like before you find the values on the z table?
The wait times in line at a grocery store are roughly distributed normally with an average...
The wait times in line at a grocery store are roughly distributed normally with an average wait time of 7.6 minutes and a standard deviation of 1 minute 45 seconds. What is the probability that the wait time is less than 7.9 minutes? What will the probability look like before you find the values on the z table? (Hint: to get something off the z table it must be in the form P (z< +a)) P (z> 0.67) P (z<0.4)...
The wait times to see a doctor at a large clinic are normally distributed with a mean of 68.2 minutes and a standard deviation of 14.8 minutes. If a simple random sample of 25 patients is selected, find the probability that the sample mean wait time is more than 75 minutes. Round to four decimal places.
A study of wait-times at the theme park found that the average ride-line length was 40 minutes with a standard deviation of 12 minutes. Assuming that wait times at the theme park are characterized by a normal distribution: What percent of guests wait longer than 60 minutes for a ride? What percent of guests wait less than 30 minutes for a ride? If you attend the theme park, what is the probability you will have to wait between 45 and...
The wait time for a table at a particular restaurant are normally distributed, with a mean of 25 minutes. Seventy-five percent of the parties who dine there wait less than 30 minutes for a table. What is the standard deviation of wait times at the restaurant?What percent of the parties wait for more than 15 minutes?
The time spent waiting in the line is approximately normally distributed. The mean waiting time is 5 minutes and the standard deviation of the waiting time is 1 minute. Find the probability that a person will wait for more than 3 minutes. Round your answer to four decimal places.
The time spent waiting in the line is approximately normally distributed. The mean waiting time is 5 minutes and the standard deviation of the waiting time is 2 minutes. Find the probability that a person will wait for more than 1 minute. Round your answer to four decimal places.
DMV claims that their average wait times are less than 15 minutes. A random sample of 10 people had a mean wait time of 13 minutes with a standard deviation of 3.5 minutes. Assuming wait times are normally distributed , test the claim at alpha=0.10 . Hint : One Mean, T-test.
The time spent waiting in the line is approximately normally distributed. The mean waiting time is 5 minutes and the standard deviation of the waiting time is 3 minutes. Find the probability that a person will wait for less than 7 minutes. Round your answer to four decimal places.
The daily demand for Superco's grocery store for bananas is normally distributed with a mean of 60 and a standard deviation of 13.5. Superco's would like to keep a service level of 98%. Additionally, the lead time for new shipments of bananas is 9 days. What is the optimal reorder point for bananas at Superco? 652 612 624 426
(1 point) Afactory's worker productivity is normally distributed. One worker produces an average of 73 units per day with a standard deviation of 23. Another worker produces at an average rate of 68 units per day with a standard deviation of 20. A. What is the probability that in a single day worker 1 will outproduce worker 2? Probability = B. What is the probability that during one week (5 working days), worker 1 will outproduce worker 2? Probability =...