User Account

All Pages

Hypothesis test for population variance

Assignment Help Basic Statistics
Reference no: EM131538065

Hypothesis test for population variance or standard deviation:

The cholesterol levels of adult males are approximately normally distributed with a mean of 225  mg/dL and a standard deviation of 22.3. Some researchers claim that the standard deviation of cholesterol levels of adult males is greater than 22.3 . A sample of 23 adult males' blood tests had a mean of 226 mg/dL and a standard deviation of 29.0 . Is there enough evidence to conclude, at the 0.05  level of significance, that the standard deviation of cholesterol levels of adult males is greater than 22.3?   Perform a one-tailed test.

Then fill in the table below.

1) The Null Hypothesis:   H0

2) The alternative Hypothesis:  H1

3) The type of test statistic:

4) The value of the test statistic:

5) The p-value:

6) Can we support the claim that the Standard deviation of cholesterol levels of adult males is greater than 22.3? Yes or NO?

Reference no: EM131538065

Questions Cloud

Which motivation theory would you use to guide your actions : As a manager, you must motivate your employees to work hard. Which motivation theory would you use to guide your actions? Why?
Mean number of commercials : Construct a confidence interval for , the difference between the mean number of commercials aired during prime time.
Evaluate your results of the self-care assessment : Develop a personal wellness plan based on the results of your self-care assessment.Evaluate your results of the Self-Care Assessment.
Identify all asymmetric carbons in the molecule on the left : Identify all asymmetric carbons in the molecule on the LEFT--- label with an AC. Identify the stereochemical relationship between the two molecules.
Hypothesis test for population variance : The cholesterol levels of adult males are approximately normally distributed with a mean of 225 mg/dL and a standard deviation of 22.3.
Explain the concept of cohort effects : How were the parenting practices similar and different between generations?Explain the concept of cohort effects.
What does a z score tell you : What does a Z score tell you?What does it mean if the Z score has a negative sign?What is a random sample? Provide an example.
Employee performance : Examine factors such as counterproductive behavior and other job stressors that may affect employee performance.
Research and ethics in psychology : Developmental psychology attempts to understand cognitive, physical, and social-emotional development throughout the lifespan.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Suppose the us president wants an estimate of the

suppose the u.s. president wants an estimate of the proportion of the population who support his current policy toward

  National survey of family growth

Age at first marriage, Part I: The National Survey of Family Growth conducted by the Centers for Disease Control gathers information on family life, marriage and divorce, pregnancy, infertility, use of contraception, and men's and women's health.

  Explain research methods which runs the greatest risk

You are conducting a study for which it is critical that the findings be representative of the population of interest. Which of the following research methods runs the greatest risk.

  Develop a 98 confidence interval for the proportion

during a national debate on changes to health care a cable news service performs an opinion poll of 470 small-business

  Use the normal approximation to binomial to find the

use the normal approximation to binomial to find the probability for n 48 p 0.9 and x lt

  A textile manufacturing process finds that on average 3

a textile manufacturing process finds that on average 3 flaws occur per every 180 yards of material produced.a. what is

  Steve and his friends are relaxing at a local tavern the

steve and his friends are relaxing at a local tavern. the number of drinks that steves table receives is poisson

  Question use the values in the joint probability table to

question use the values in the joint probability table to solve the equations

  Combine summaries within each category to get overall rating

Combine the summaries within each category to get an overall rating for the category. Be prepared to justify your method of combining the response summaries.

  Construct a confidence interval for the true mean

Find the sample size necessary to construct a 98% confidence interval for the true mean chlorophyll concentration with a bound on the error of estimation B = 0.5.

  What is the probability of three successes

What is the probability that a randomly selected person will be a Protestant and at the sametime be a Democrat or a Republican and what proportion of teenagers watch 16 to 18 hours of TV a week?

  The x column indicates the number of client contact last

question correlation and regression analysisthe owner of a financial services firm believes that there is a

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