1-for the following statement write down the null, Ask an Expert

Statistics

1-For the following statement, write down the null hypothesis and alternative hypothesis. Also label which one is the claim. Company X claims that the average salary for entry level employee is $35,000

2-The monthly utility bills are normally distributed with mean value of $160 and standard deviation of $25.

(a) Determine the probability of having a utility bill between 120 and 180.

(b) Determine the probability of having a utility bill less than $120.

3-A pizza restaurant manager claims that average home delivery time for their pizza is no more than 25 minutes. A random sample of 49 home delivery pizzas was gathered. The sample mean was found to be 26.5 minutes and standard deviation was found to be four minutes. Is there evidence to reject the manager's claim at alpha =.05? Carry out an appropriate hypothesis test, showing the necessary computations and/or describing the process employed to obtain the results.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91120248

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

What is the fraction defective if material hardness is

What is the fraction defective if material hardness is normally distributed with a mean of 42 and a standard deviation of 1 and the specification limits for hardness are from 35 to 45? What value for the process mean wil ...

A car gets involved in an accident 80 of the time if it is

A car gets involved in an accident 80% of the time if it is defective. If it is not defective, the probability reduces to 40%. 30% of all cars are defective. If a car is involved in an accident, what is the probability t ...

A student recieves the grades shown below with an a worth 4

A student recieves the grades shown below, with an A worth 4 points, a B worth 3 points, a C worth 2 points, and a D worth 1 point. What is the students grade point average? A in 1 four - credit classes C in 1 three - cr ...

The seaboard shipping company has a warehouse terminal in

The Seaboard Shipping Company has a warehouse terminal in Spartanburg, South Carolina. The capacity of each terminal dock is 3 trucks. As trucks enter the terminal, the drivers receive numbers, and when one of the three ...

Below are commute times and amounts of rainfall for a few

Below are commute times and amounts of rainfall for a few randomly selected dates last year. Rain (mm) Commute time (min) 3 20 0 10 1 25 9 30 15 60 12 25 Treat "Rain" as the X variable Compute the value of r for the corr ...

According to the same national collegiate athletic

According to the same National Collegiate Athletic Association data, the means and standard deviations of eligibility and retention rates (based on a 1,000-point scale) for the 2013-2014 academic year are presented, alon ...

Rippards has a debt ratio of 15 a total asset turnover

Rippard's has a debt ratio of 15%, a total asset turnover ratio of 3.0 and a return on equity (ROE) of 48%. Compute Rippard's net profit margin.

Why is it that some people make very high returns on the

Why is it that some people make very high returns on the stock market if it is so efficient? Is it more difficult to reconcile very high returns with efficient markets if the same people make extraordinary returns year a ...

What is the business of wholesale banking in terms of its

What is the business of wholesale banking in terms of its Products and Services and its customer base? What are the key challenges in the wholesale banking market?

The correlation between the weight of a bodybuilder and the

The correlation between the weight of a bodybuilder and the weight they can lift is 0.70. True or False: The more this bodybuilder weighs, the more amount of weight they can lift

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