According to data from the environmental protection agency

Assignment Help Basic Statistics
Reference no: EM13613623

According to data from the Environmental Protection Agency, the average daily water consumption for a household of four people in the United States is approximately at least 243 gallons. Suppose a state agency plans to test this claim using an alpha level equal to 0.05 and a random sample of 100 households with four people.

a) State the null and alternative hypotheses.

b) Calculate the probability of committing a Type II error if the population mean is 230 gallons. Assume that the population standard deviation is known to be 40 gallons.

Reference no: EM13613623

Questions Cloud

The average flight from point a to point b takes 100 : the average flight from point a to point b takes 100 minutes with a standard deviation of 10 minutes.a. what is the
Members of the senate took a battery of tests to assess : members of the senate took a battery of tests to assess their abilities. in the talking as if you are saying something
Let x have an exponential distribution with mean : let x have an exponential distribution with mean sigma.a find the first quartile q1b how far is the first quartile
The quality-control inspector of a production plant will : the quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes
According to data from the environmental protection agency : according to data from the environmental protection agency the average daily water consumption for a household of four
A factory produces fuses which are packaged in boxes of 25 : a factory produces fuses which are packaged in boxes of 25. eight fuses are selected at random from each box for
For a normal distribution find the z-score that cuts off : a for a normal distribution find the z-score that cuts off the bottom 63.66 of all the z-scores. round to 2 decimal
On average a textbook author makes two word processing : on average a textbook author makes two word processing errors per page on the first draft of her textbook. what is the
A large chain retailer purchases a certain kind of : a large chain retailer purchases a certain kind of electronic device from a manufacturer. the manufacturer indicates

Reviews

Write a Review

Basic Statistics Questions & Answers

  Explain how correlation is often miscast as causation

Think about how correlation is often miscast as causation. That is, cause is attributed to a variable when in fact.

  Number of tumors in a fish living in a river

Let X be the number of tumors in a fish living in a river. Suppose that it has the following probability mass function f(0) = 0.9 f(1) = 0.7 f(2) = 0.02 f(3) = 0.01 A random sample of size n = 30 is selected from this population. Approximate the p..

  Analysis of sample size

A random sample of 41 basketball players from The Official NBA Basketball Encyclopedia gave the sample standard deviation for player height as s=3.32 inches.

  Determine the probability that the flop

Contains at least 1 card of your denomination and gives you "trips" that is, contains exactly 1 card of your denomination and 2 other unpaired cards.

  Probability of recovering stolen cars

Solve the problem: According to police sources a car with a certain protection system will be recovered 94% of the time. Find the probability that 4 of 8 stolen cars will be recovered.

  Standard error when sample size given

As sample size increases, the standard error of M _______________ .

  In a recent survey ten percent of the homes in montana were

in a recent survey ten percent of the homes in montana were found to own a miley cyrus action figure. in a sample of

  Hypertensive status and independent events

What is the probability that 0, 1, 2, or 3 hypertensives will be identi ed in such sibships if the hypertensive status of 2 siblings in the same family are independent events?

  Find probability that selected medical resident works less

Randomly selected medical resident works more than 100 hours in a week? (c) What is the probability that a randomly selected medical resident works less than 60 hours in a week?

  Coefficient of determination and correlation

What does the coefficient of determination tell you about the variation in attendance and the variation in the number of exhibitors?

  Find the pmf of number of firms visited by inspector

The firms are actually violating at least one regulaltion, what is the pmf of the number of firms visited by the inspector that are in violation of at least one regulation?

  Confidence intervals for the population proportion

625 males, 398 say they have gone to the dentist in the past year. Construct 90% and 95% confidence intervals for the population proportion.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd