A grocery stores receipts show that Sunday customers purchases have a skewed distribution with a mean...
A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $26 and a standard deviation of $15. Suppose the store had 315 customers this Sunday. a) Estimate the probability that the store's revenues were at least $8,300 b) If, on a typical Sunday, the store serves 315 customers, how much does the store take in on the worst 10% of such days?
A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $28 and a standard deviation of $20. Suppose the store had 291 customers this Sunday. a) Estimate the probability that the store's revenues were at least $8 comma 800. b) If, on a typical Sunday, the store serves 291 customers, how much does the store take in on the worst 10% of such days?
A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $26 and a standard deviation of $14. Suppose the store had 312 customers this Sunday. a) Estimate the probability that the store's revenues were at least $8 comma 400. b) If, on a typical Sunday, the store serves 312 customers, how much does the store take in on the worst 1% of such days?
a) The probability is
(Round to four decimal places as needed.)
B) the store takes in at most $. ?
(Round to two decimal places as needed.)
A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $33 and a standard deviation of $19. Suppose the store had 312 customers this Sunday. a) Estimate the probability that the store's revenues were at least $10,800 b) If, on a typical Sunday, the store serves...
A food company sells salmon to various customers. The mean weig discount outlet stores in pallets of 64 salmon. To forecast costs, t ht of the salmon is 31 lb with a standard deviation of 2 lbs. The company ships them to restaurants in boxes of 9 salmon, to grocery stores in cart ons of 36 salmon, and to iles ostmers. the shipping department needs to est mate the standard deviation of the mean weight of the salmon in each...
The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50, with a standard deviation of $500. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following questions (a) What is the likelihood the sample mean is at least $25.00 decimal places and final answer to 4 decimal places.) Round z value to 2 Probability What is the likelihood the sample mean is greater than $2250 but less...
The mean amount purchased by a typical customer at Churchill's Grocery Store is $23.50, with a standard deviation of $5.00. Assume the distribution of amounts purchased follows the normal distribution. For a sample of 50 customers, answer the following questions. (a)What is the likelihood the sample mean is at least $25.00? (Round z value to 2 decimal places and final answer to 4 decimal places.) Probability (b)What is the likelihood the sample mean is greater than $22.50 but less an...
A grocery stores studies how long it takes customers to get through the speed check lane. They assume that if it takes more than 10 minutes, the customer will be upset. Find the probability that a randomly selected customer takes more than 10 minutes if the average is 7.45 minutes with a standard deviation of 1.04 minutes. 0.007 0.071 0.993 0.501 The toasters produced by a company have a normally distributed life span with a mean of 5.8 years and...
The growth rate in the grocery industry is 2.96% and American stores have the following shares: Vons/Safeway < 8% Target 3% Costco 8% Ralph’s/Kroger 15% Walmart 40% whole food <2% And walmart has been in the grocery industry only 20 years. Walmart most likely entered the grocery industry in the early 1990s. To top new market development To penetrate the market of customers they already have an increase sales To benefit from new market development and expand both globally and...
Customers make purchases at a convenience store, on average, every nine minutes. It is fair to assume that the time between customer purchases is exponentially distributed. Jack operates the cash register at this store. a-1. What is the rate parameter λ? (Round your answer to 4 decimal places.) a-2. What is the standard deviation of this distribution? (Round your answer to 1 decimal place.) b. Jack wants to take a seven-minute break. He believes that if he goes right after...