Suppose that the number of customers who enter a supermarket each hour is normally distributed with...
Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 640 and a standard deviation of 240. The supermarket is open 17 hours per day. What is the probability that the total number of customers who enter the supermarket in one day is greater than 10200? (Hint: Calculate the average hourly number of customers necessary to exceed 10200 in one 17-hour day.)
Probability = ?? ______
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Suppose that the number of customers who enter a supermarket
each hour is normally distributed with...
Suppose that the number of customers who enter a supermarket each hour is normally distributed with...
Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 570 and a standard deviation of 190. The supermarket is open 18 hours per day. What is the probability that the total number of customers who enter the supermarket in one day is greater than 8800?
Suppose that the number of gallons of milk sold per day at a local supermarket are...
Suppose that the number of gallons of milk sold per day at a local supermarket are normally distributed with mean and standard deviation of 340.8 and 20.97, respectively. What is the probability that on a given day the supermarket will sell below 334 gallons of milk? Question 1 options: 1) 0.3729 2) 0.6271 3) 0.8208 4) 0.1792 5) We do not have enough information to calculate the value.
Suppose that ? is normally distributed with mean 85 and standard deviation 16. A. What is...
Suppose that ? is normally distributed with mean 85 and standard deviation 16. A. What is the probability that ? is greater than 104.2? Probability = B. What value of ? does only the top 12% exceed? ? =
Suppose that ? is normally distributed with mean 115 and standard deviation 15. A. What is...
Suppose that ? is normally distributed with mean 115 and standard deviation 15. A. What is the probability that ? is greater than 134.8? Probability = B. What value of ?X does only the top 14% exceed? ? =
1. The number of hours spent sleeping each day by teens is normally distributed with a...
1. The number of hours spent sleeping each day by teens is normally distributed with a mean of 9 hours and a standard deviation of 1.8 hours a) Find the probability one teen will sleep over 10 hours in day? b) If I take a sample of 100 teens, how many of those 100 teens on average will sleep over 10 hours in day?
Suppose that X is normally distributed with mean 95 and standard deviation 13. A. What is...
Suppose that X is normally distributed with mean 95 and standard deviation 13. A. What is the probability that X is greater than 113.72? Probability = B. What value of X does only the top 14% exceed? X =
Suppose that X is normally distributed with mean 85 and standard deviation 21. A. What is...
Suppose that X is normally distributed with mean 85 and standard deviation 21. A. What is the probability that X is greater than 110.41? Probability = B. What value of X does only the top 13% exceed? X =
Suppose that X is normally distributed with mean 105 and standard deviation 12. A. What is...
Suppose that X is normally distributed with mean 105 and standard deviation 12. A. What is the probability that X is greater than 126.24? What value of X does only the top 11% exceed?
1. A gas station opens at a time which is Normally distributed with the mean of...
1. A gas station opens at a time which is Normally distributed with the mean of 8:45 am and standard deviation of 10 minutes; similarly, its closing time is Normally distributed with the mean value at 5:12 pm and standard deviation of 15 minutes. If customers arrive as a Poisson Process with an average rate of 11.3 per hour, find the mean number of customers to be served in one such day, and the corresponding standard deviation. What is the...
Case 1 The amount of money spent by Safeway customers is normally distributed with mean 140...
Case 1 The amount of money spent by Safeway customers is normally distributed with mean 140 and a standard deviation of 12. Suppose that a sample of 64 customers are selected. Answer the following questions. What is the mean of the sampling distribution? 140 150 170 240 What is the standard error of the sampling distribution? 1.23 1.50 1.55 1.20 What is the probability that the average spending by the customers is greater than 144? 0.9962 0.9966 0.0038 0.0048 What...
1. A gas station opens at a time which is Normally distributed with the mean of 8:45 am and standard deviation of 10 minutes; similarly, its closing time is Normally distributed with the mean value at 5:12 pm and standard deviation of 15 minutes. If customers arrive as a Poisson Process with an average rate of 11.3 per hour, find the mean number of customers to be served in one such day, and the corresponding standard deviation. What is the...
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