Question

You are contacted by a phone-in technical support business that is interested in some information about...

You are contacted by a phone-in technical support business that is interested in some information about the amount of time their customers spend on hold. You find out that on average, each caller spends 5.12 minutes on hold with a standard deviation of 2.45 minutes. If you were to take a random sample of 41 callers, you would expect 77% of the time the average hold time would be less than how many minutes?

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

Homework Answers

Answer #1

This question is solved using the central limit theorem.

According to the central limit theorem, when population mean and standard deviation is given and a large sample size (greater than 30) is taken then the distribution of sample means is approximately normally distributed.

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
You own a small storefront retail business and are interested in determining the average amount of...
You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 24 customers and find that the average dollar amount spent per transaction per customer is $80.117 with a standard deviation of $13.8918. When creating a 95% confidence interval for the true average dollar amount spend per customer, what is the margin of...
Ocala Software Systems operates a technical support center for its software customers. If customers have installation...
Ocala Software Systems operates a technical support center for its software customers. If customers have installation or use problems with Ocala software products, they may telephone the technical support center and obtain free consultation. Currently, Ocala operates its support center with one consultant. If the consultant is busy when a new customer call arrives, the customer hears a recorded message stating that all consultants are currently busy with other customers. The customer is then asked to hold and is told...
Ocala Software Systems operates a technical support center for its software customers. If customers have installation...
Ocala Software Systems operates a technical support center for its software customers. If customers have installation or use problems with Ocala software products, they may telephone the technical support center and obtain free consultation. Currently, Ocala operates its support center with one consultant. If the consultant is busy when a new customer call arrives, the customer hears a recorded message stating that all consultants are currently busy with other customers. The customer is then asked to hold and is told...
Problem 11-15 (Algorithmic) Ocala Software Systems operates a technical support center for its software customers. If...
Problem 11-15 (Algorithmic) Ocala Software Systems operates a technical support center for its software customers. If customers have installation or use problems with Ocala software products, they may telephone the technical support center and obtain free consultation. Currently, Ocala operates its support center with one consultant. If the consultant is busy when a new customer call arrives, the customer hears a recorded message stating that all consultants are currently busy with other customers. The customer is then asked to hold...
You own a small storefront retail business and are interested in determining the average amount of...
You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 14 customers and find that the average dollar amount spent per transaction per customer is $82.232 with a standard deviation of $10.2207. Create a 99% confidence interval for the true average spent for all customers per transaction 1) ( 74.004 , 90.46...
You own a small storefront retail business and are interested in determining the average amount of...
You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 45 customers and find that the average dollar amount spent per transaction per customer is $90.422 with a standard deviation of $13.895. When creating a 90% confidence interval for the true average dollar amount spend per customer, what is the margin of...
Question 3 (1 point) You own a small storefront retail business and are interested in determining...
Question 3 (1 point) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 42 customers and find that the average dollar amount spent per transaction per customer is $89.687 with a standard deviation of $10.9431. When creating a 99% confidence interval for the true average dollar amount spend per customer, what...
You own a small storefront retail business and are interested in determining the average amount of...
You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 15 customers and find that the average dollar amount spent per transaction per customer is $119.375 with a standard deviation of $12.1991. Create a 95% confidence interval for the true average spent for all customers per transaction. Question 1 options: 1) (...
PART A) You own a small storefront retail business and are interested in determining the average...
PART A) You own a small storefront retail business and are interested in determining the average amount of money a typical customer spends per visit to your store. You take a random sample over the course of a month for 14 customers and find that the average dollar amount spent per transaction per customer is $109.477 with a standard deviation of $11.8571. Create a 90% confidence interval for the true average spent for all customers per transaction. PART B) Researchers...
Hi! Thanks for taking the time to check out my problem. If you can please answer...
Hi! Thanks for taking the time to check out my problem. If you can please answer as many as possible and I really appreciate your help. Question 1 2 pts The length of time a person takes to decide which shoes to purchase is normally distributed with a mean of 8.21 minutes and a standard deviation of 1.90. Find the probability that a randomly selected individual will take less than 6 minutes to select a shoe purchase. Is this outcome...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT