User Account

All Pages

Mean consumption of water per household

Assignment Help Basic Statistics
Reference no: EM132188075

The mean consumption of water per household in a city was 1209 cubic feet per month. Due to a water shortage because of a drought, the city council campaigned for water use conservation by households. A few months after the campaign was started, the mean consumption of water for a sample of 93 households was found to be 1187 cubic feet per month. The population standard deviation is given to be 214 cubic feet.

a. Find the p-value for the hypothesis test that the mean consumption of water per household has decreased due to the campaign by the city council. Would you reject the null hypothesis at α=0.05?

Round your answer to four decimal places.

p-value =

b. Make the test of part a using the critical-value approach and α=0.05.

Round your answer for z to two decimal places.

zobserved =

Reference no: EM132188075

Questions Cloud

How does the depiction of slavery in Colin Whitehead novel : Your essay should answer this question: How does the depiction of slavery in Colin Whitehead's novel The Underground Railroad compare to other depictions
Compute approximations of the largest eigenvalue : Write a Matlab code implementing the inverse power method to compute approximations of the smallest eigenvalue - compared approximations with exact eigenvalue
Individual Audit and digital presence on a company : Individual Audit and digital presence on a company of your choice. You must include an overview of the tools used to complete the audit
Find the p-value for the test of hypothesis : Find the p-value for the test of hypothesis with the alternative hypothesis that the current mean weekly earning of American workers who have a bachelor
Mean consumption of water per household : Find the p-value for the hypothesis test that the mean consumption of water per household has decreased due to the campaign by the city council.
Explain difference between abnormal versus normal qualities : Students will choose a mental health disorder (for example depression), from what we discussed in class. They will write a 3-5 page paper.
State the hypothesis-compute the statistics : A random sample of 25 lattes shows a mean of 4.6 oz of espresso and a standard deviation 0.22 oz. Are their lattes consistent?
Population mean for psychology test : The population mean for psychology test in a class that is usually taken by juniors and seniors is 100 (out of 200)with a population standard deviation of 16.
Will you need to change its team processes : How does the company instill and perpetuate its culture? Explain the role of the incentives in building the culture and facilitating strategy execution.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Distribution of systolic blood pressure

The systolic blood pressure of a group of 18-year-old women is basically distributed with a mean of 120 mmHg and a standard deviation of 12 mmHg.

  Three things that differentiate parametric

Let's see how much you have been paying attention. For your first Pause-Problem in this chapter, please tell me three things that differentiate parametric

  Statistic-critical value and p value

Suppose a study is constructed to test a claim, at a 0.05 signifigance level that a population proportion is 40%. A simple random sample of 750 subjects has a proportion of 42%.

  What is the difference between einsteins iq and the mean

What is the difference between Einstein's IQ and the mean? How many standard deviations is that [the difference found in part (a)]?

  Oral component of presentation

Students will meet the required "oral" component of the presentation by posting a PowerPoint presentation including the following criteria:

  A number of tubes of toothpaste purchased by a typical

a number of tubes of toothpaste purchased by a typical family is a random variable having a poisson distribution with

  Define production of the premium lagers matches

Using a chi-square goodness-of-fit test, decide to retain or reject the null hypothesis that production of the premium lagers matches these consumer.

  Number of individuals by smoking and disease status

The accompanying table presents the number of individuals by smoking and disease status.

  What percentage of applicants have combined gre scores

An applicant needs a minimum combined score of 1400 to gain admission and what percentage of applicants have combined GRE scores between 1200

  Find the moment-generating function

The same exponential distribution with the mean E(Xi)=2, (i=1, 2, ..., n), and Y=X1+X2+...+Xn. Find the moment-generating function of Xi (i=1, 2, ..., n).

  What is the null hypothesis of study

What is the Null hypothesis of this study? What is the Alternate hypothesis of this study?

  Determining reversal

In the 2000 football season, 247 plays were reviewed by officials using instant video replays, and 83 of them resulted in reversal of the original call.

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

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