Question

Let X = amount of time (in minutes) a postal clerk spends with a customer. Where...

Let X = amount of time (in minutes) a postal clerk spends with a customer. Where the average amount of time is equal to four minutes.

What is the probability that a clerk spends four to five minutes with a randomly selected customer ?

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
According to one study, the amount of time a customer spends shopping in a grocery store...
According to one study, the amount of time a customer spends shopping in a grocery store is normally distributed with a mean of 45 minutes and a standard deviation of 12 minutes. Let X be the number of minutes that a customer spends shopping in a grocery store on one visit. Calculate the probability that a customer spends at least 50 minutes shopping.
The amount of time that a customer spends waiting at an airport check-in counter (X) is...
The amount of time that a customer spends waiting at an airport check-in counter (X) is a random variable with mean 8.2 minutes and standard deviation 2.5 minutes. If a random sample of n = 30 customers were observed, then what is the probability that the sample average waiting time exceeds 9 minutes? Show your work.
The amount of time that a customer spends waiting at an airport check-in counter is a...
The amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.1 minutes and standard deviation 1.6 minutes. Suppose that a random sample of n=50 customers is observed. Find the probability that the average time waiting in line for these customers is (a) Less than 10 minutes (b) Between 5 and 10 minutes (c) Less than 6 minutes Round your answers to four decimal places (e.g. 0.9876).
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution...
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 31 minutes. Let X - is the amount of time (in minutes) that a randomly selected spouse spends to shop for anniversary card. What is the standard deviation of X?
Let X denote the waiting time (in minutes) for a customer. An assistant manager claims that...
Let X denote the waiting time (in minutes) for a customer. An assistant manager claims that μ, the average waiting time of the entire population of customers, is 3 minutes with standard deviation also 2 minutes. The manager doesn't believe his assistant's claim, so he observes a random sample of 36 customers. The average waiting time for the 36 customers is 3.2 minutes. What is the probability that the average of 36 customers is 3.2 minutes or more? Do you...
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution...
The amount of time spouses shop for anniversary cards can be modeled by an exponential distribution with the average amount of time equal to 31 minutes. What is the probability that a randomly selected spouse spends 20 to 77 minutes to shop for anniversary card?
The amount of time a bank teller spends with each customer has a population mean μ=...
The amount of time a bank teller spends with each customer has a population mean μ= 3.10 and a standard deviation σ =0.40 minute. If you select a random sample of 20 customers REQUIRED What is the probability that the mean time spent per customer is at least 5 minutes? There is an 85% chance that the sample mean is below how many minutes? What assumption must you make in order to solve (a) and (b)? If you select a...
(1 point) The amount of time (in minutes) to serve a customer at a bank's drive-thru...
(1 point) The amount of time (in minutes) to serve a customer at a bank's drive-thru window is a random variable following a certain distribution with a mean of 1 minute and a standard deviation of 1 minute. 66 customers using the bank's drive-thru service are randomly chosen and the amount of time to serve each customer was recorded. What is the probability that the mean amount of time it takes to serve the 66 customers is between 0.9 minutes...
A Pizza delivery business in a large city has determined that the amount of time that...
A Pizza delivery business in a large city has determined that the amount of time that a customer spends waiting for their delivery order is normally distributed with a mean of 26.5 minutes and a standard deviation of 3 minutes. What is the probability that for a randomly chosen customer the amount of time spent waiting for their delivery is less than 30 minutes. Use the calculator to determine the probability. Write the calculator function. A Pizza delivery business in...
The amount of time a bank teller spends with each customer has a population​ mean, muμ​,...
The amount of time a bank teller spends with each customer has a population​ mean, muμ​, of 2.902.90 minutes and a standard​ deviation, sigmaσ​, of 0.500.50 minute. Complete parts​ (a) through​ (d). a. If you select a random sample of 1616 ​customers, what is the probability that the mean time spent per customer is at least 2.8 ​minutes? . 7881.7881 ​(Round to four decimal places as​ needed.)b. If you select a random sample of 1616 ​customers, there is an 84​%...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT