(Answered) Question suppose the length of time a person takes to use

Statistics

Question: Suppose the length of time a person takes to use an ATM machine is normally distributed with mean μ = 100 seconds and standard deviation σ = 10 seconds. There are n = 4 people ahead of Jackson in a line of people waiting to use the machine. He is concerned about T = total time the four people will take to use the machine.

a. What is the mean value of T = total time for the four people ahead of Jackson?

b. Assuming that the times for the four people are independent of each other, determine the standard deviation of T.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92536090
Price:- $15

Verified Expert

Priced at $30 Now at $15, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

Given the following values 20 m 16 07 conduct a

Given the following values: = 20, M = 16, = 0.7, conduct a one-sample z test at a .05 level of significance. What is the decision for a two-tailed test? A) to reject the null hypothesis B) to retain the null hypothesis C ...

The ph acidity of the liquor is critical for regulating dye

The pH (acidity) of the liquor is critical for regulating dye uptake and hence the final color. There are 5 kettles, all of which receive dye liquor from a common source. Past data show that pH varies according to a Norm ...

An important part of the customer service responsibilities

An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.75 that troubles in a ...

Two companies make instruments for bands company as product

Two companies make instruments for bands. Company A's product has a lifespan of 5 years and a standard deviation of 15 months. Compny B's product has a mean lifespan of 5 years and a standard deviation of 3 months. Which ...

Bond x1 is a premium bond with a 12 coupon bond x2 is a 6

Bond X1 is a premium bond with a 12% coupon. Bond X2 is a 6% coupon bond currently selling at a discount. Both bonds make annual payments, have a YTM of 8%, and have seven years to maturity. (Round off all answers to 2 d ...

A mail order supplier advertises same-day service on every

A mail order supplier advertises same-day service on every order. Recently, the movement of orders has not gone as planned. The director of customer service has completely redone the method of order handling. The goal of ...

According to the deloitte ev survey 5 of respondents

According to the Deloitte EV Survey, 5% of respondents indicated that they would be willing to pay an extra $500 or more for an electric vehicle versus one with a gasoline engine. A random sample of 25 adults has been se ...

You decide to further your research project by

You decide to further your research project by hypothesizing that the true average core body temperature amidst higher ambient temperature and humidity levels for the population who do not use electric fans is greater ...

The length of time needed to complete certain test is

The length of time needed to complete certain test is normally distributed with mean 74 minutes and standard deviation 17 minutes. Find the probability that it will take more than 70 minutes to complete the test. 0.7035 ...

On the below question how did they decided the two

On the below question, how did they decided the two probabilities of guessing the correct and wrong answer on a question? Where did the 0.25 and 0.75 come from? The probability of achieving exactly k successes in n t ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert