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

  Determine probability that men is drinking coffee

All subjects in the study were questioned about lifestyle factors including alcohol, tea, and coffee consumption. The resulting data are as follows.

  Probability of a mesh polo shirt

The shirt was a mesh polo shirt. Given this information, what is ths probability that the mesh polo shirt came from box 1?

  Point estimate for mean and margin of error

Find the 95% confidence interval for the true population mean. Identify the point estimate for mean and margin of error.

  Explain conclude-that women think men are less kind-gentle

At the .05 level, can we conclude-that women think men are less kind, gentle, and thoughtful in 2000 compared with 1990?

  Testing of population proportion

Of the 38 numbers on a roulette wheel, 18 are red, 18 are black and 2 are green. If the wheel is balanced, the probability of the wheel landing on red is 0.474.

  To find mean-median-mode and midrange

Find the mean, median, mode, and midrange for these data.

  Eight percent of families have both a mastercard and an

q1. in a city in italy 30 of the families have a mastercard 20 have an american express card and 25 have a visa card.

  Determine probability that none of the vehicles need service

Industry standards recommend that 9 percent of new vehicles need warranty service in the first year. Determine the probability that none of these vehicles needs warranty service?

  What is the population

Assume that you have selected 10 students enrolled at your college and have collected data for these three variables:

  In which type of regression is likely to occur

Define Autocorrelation in the following terms. In which type of regression is it likely to occur? What is the negative impact of autocorrelation in a regression?

  Measures of variation for the given data

The weights (in pounds) of a sample of five boxes being sent by UPS are: 12, 6, 7, 3, and 10.

  Identify the implied population in the information

Identify the implied population in the information here. Government agencies carefully monitor water quality and its effect on wetlands

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