
In a large restaurant an average of 2 out of every 5 customers ask for water...
In a large restaurant an average of 2 out of every 5 customers ask for water with their meal. A random sample of 20 independent customers is selected. Find the smallest value of α such that P (X > α) ≥ 0.9 where the random variable X represents the number of these customers who ask for water.
in a large restaurant an average of 3 out of 5 customers will ask for water with their waiter. a random sample of 50 customers is randomly selected. what is the probability that less than 34 ask for water with their meals?
1. An average of 4 out of 8 customers in a restaurant, are asking for green tea with their meal. A random sample of 8 customers is selected. Show your work and use binomial to find the probability that: (i) Exactly 2 ask for green tea with their meal? (ii) Less than 7 ask for green tea with their meal?
In a shopping mall an average of 3 out of every 5 customers use visa credit cards. A sample of 10 customers is selected. Find the probability that exactly 6 customers use visa credit card. Find the probability that less than 9 customers use visa credit card. Now assume that a sample of 50 customers are selected. Find the smallest value of n such that P(X<n) ≥ 0.9, where the random variable X represents the number of customers who uses...
5 Peu DISUutions Graded (20%) Due: 15/11/2019 Question 1 State three (3) conditions for a situation to described using a Binomial model. Write down the pdf for the binomial distribution and give a brief description of each term A random variable X has the distribution Bin( 12,p). (a) Given that p = 0.25 find (0) P(X<5) (ii) PCX >7) (b) Given that P(X = 0) = 0.05, find the value of p to 3 decimal places. (c) Given that the...
At Restaurant Krave, 9 out of 10 (.90) customers typically report that they are “satisfied” with their meal. If a random sample of 10 customers is selected next Friday night, what is the probability that exactly 8 of them will report being satisfied? (Use the binomial distribution).
Margaret manages a fast food restaurant and she is concerned about customers who ask for a water cup when placing an order but fill the cup with a soft drink from the beverage fountain instead of filling the cup with water. She selected a random sample of 90 customers who asked for a water cup when placing an order and found that 33 of those customers filled the cup with a soft drink from the beverage fountain. Construct 95 percent...
A restaurant owner finds that the time customers wait between sitting down and their server arriving is a random variable distributed expo nentially with an average of 2.5 minutes. What is the probability that a customer will wait for their for more than 4 minutes? server Consider the situation in the previous problem. The owner wishes to post a sign saying that customers who have waited longer then M minutes will receive a free meal. How long should M be...
Suppose a fast food restaurant can expect two customers every 3 minutes, on average. What is the probability that four or fewer patrons will enter the restaurant in a 9 minute period? a.72% b. 28% c. 32%
During lunchtime at a certain fast food restaurant, customers arrive at an average rate of 7 customers every 5 minutes. assume a poisson distribution to find the probability that: A) exactly 12 customers arrive in a given 10 minute interval (perform this calculation using an appropriate formula, showing the setup.) b) between 5 and 10 customers (inclusive) arrive in a given 5 minute interval (show how you can answer this from the table) c) after a customer arrives, find the...