Determine whether null hypothes be rejected or not

Assignment Help Basic Statistics
Reference no: EM13109694

A magazine article stated that average age of women who are getting married for first time is 26 years. Researcher decided to test hypothesis at α = .02. She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?

Reference no: EM13109694

Questions Cloud

What is he supposed to report on his 2013 return : What is he supposed to report on his 2013 return and what is his basis in the car? He plans to use it in his business and wants to depreciate it. The company had been depreciating it over 5 years using MACRS.
What is the importance of surface area to the functioning : How is the villus the functional unit of the small intestine? In your answer, include a discussion of its structure and function and the enzymes found there. What is the importance of surface area to the functioning of the villi?
Determine confidence interval of the true mean age : Standard deviation was 4.1 years. Suppose the variable is normally distributed. Determine 95% confidence interval of the true mean age.
Analyze procter and gamble resources : Analyze Procter & Gamble's resources and capabilities as well as its structures and systems. internal resources and capabilities.
Determine whether null hypothes be rejected or not : She chose the sample of 25 women who were recently married for first time and found average age was 23.5 years. Standard deviation was 3 years. Must null hypothesis be rejected?
Statistical significance statements : Describe whether statements regarding statistical significance are true or false. When your results are found to be statistically significant, can one conclude that they will have a meaningful effect in the clinic.
Determine the utilization of development centers : Pharma Blitz develops and markets new technological products to be used in health care. The development of a new product operates as follows.
Find out probability that two of eggs in carton are cracked : You have picked out the carton of 1 dozen eggs (that's 12 eggs) at grocery store. Find out the probability that at most two of eggs in carton are cracked.
Calculate the maximal expected profit : Goop Inc needs to order a raw material to make a special polymer. The demand for the polymer is forecasted to be Normally distributed with a mean of 250 gallons and a standard deviation of 125 gallons.

Reviews

Write a Review

Basic Statistics Questions & Answers

  F-ratios and treatment effects

Do you think an F-ratio of 1 would lead you to conclude that there is no treatment effect? Why? Justify your answers with examples.

  Estimating probability values based on discrete distribution

Use this information to construct a probability table, and then calculate each of the following probabilities:

  Drawing a card and getting a spade

What are the odds against drawing a card from an ordinary deck of cards and getting a spade?

  Level of measurement-class intervals

Determine the level of measurement for these items related to the newspaper business? The following data gives the weekly amounts spent on groceries for sample of households.

  Create a box-and-whisker plot

One of the main measures of the quality of service provided by any organization is the speed with that responds to customer complaints. A large family-held department store selling furniture and flooring, including carpet, had undergone a chief ex..

  Randomly selected day-jail population

The average daily jail population in the United States is 706,242. If the distribution is normal and the standard deviation is 52,145, find the probability that on a randomly selected day the jail population is:

  Determining probability to reject null hypothesis

Determine the probability that we would reject null hypothesis given that it is true?

  Truck dealer claims where a new model will give trouble free

To find out the alternate hypotheses also critical value. A truck dealer claims where a new model will give trouble free service for at least 15,000 miles.

  Watchdog agency selecting a random sample of taxpayers

According to an IRS study, it takes a mean of 330 minutes for taxpayers to prepare, copy and electronically file a 1040 tax form. The distribution of times follows the normal distribution and the standard deviation is 80 minutes. A consumer watchd..

  Confidence interval estimation of population proportion

In a poll of 150 randomly selected adults 78 said they favored a new proposition. compute a 95% confidence interval for the proportion of all adults in favor of the proposition at the time of the poll.

  Example on natural logarithm

where p is the binomial probability of returning a completed survey, and log is the natural logarithm. The multiple logistic regression output from fitting this model is given below.

  Basics of mean annual precipitation

What is the likelihood that the mean annual precipitation during 25 randomly picked years will be less than 90.8 inches?

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