sAMPLING mETHOD, Basic Statistics

Assignment Help:
A toothpaste company wants to know if its new product increases the length of time in between dentist
visits for its users. The company sets a target of 180 days to determine if its product prevents dentist visits
longer than other toothpastes. A random sample of 49 customers is taken with a mean of 186 days and a
standard deviation of 20. Set up a one-tailed test at 0.01 level.

Related Discussions:- sAMPLING mETHOD

Estimate the probability , The Video Club Martin rents movies at "regular p...

The Video Club Martin rents movies at "regular price" andat  "half price". Usually if the films are regularly priced one day, they will be at regular price the next day with probab

Volume, I have a box that measures 3m x 3m x 3m. What is the volume of the...

I have a box that measures 3m x 3m x 3m. What is the volume of the cube?

estimate the mean chloride concentratio, An article in the Journal of Env...

An article in the Journal of Environmental Engineering (Vol. 115, No. 3,1989, pp. 608-619) reported the results of a study on the occurrence of sodium and chloride in surface str

#piosson ditribution., Ask Suppose that the expected number of phone calls ...

Ask Suppose that the expected number of phone calls that are handel by a switchboard in each second is 5.35. Assume that the distribution of the number of phone calls per second fo

What is the net book value of a noncurrent asset, What is a sole proprietor...

What is a sole proprietorship? A sole proprietorship is a form of business organization that is owned by one person. The owner is referred to as a sole proprietor. In accoun

Home Assignments, A survey was conducted among the residents of Pune City, ...

A survey was conducted among the residents of Pune City, its suburbs and the Pune Cantonment area. The following three pie diagrams show their respective preferences for living in

Find the mean and standard deviation, A travel agency surveyed 38 customers...

A travel agency surveyed 38 customers holidaying in Australia who took their spouses on either a skiing or a golfing vacation.  The data comprises amounts (in hundreds of dollars).

Characteristics of statistics, Mention the characteristics of statistics. E...

Mention the characteristics of statistics. Explain any two application of Statistics

Distinction between management and financial accounting, Distinction betwee...

Distinction between Management and Financial Accounting The variations between control sales and financial sales include Control sales provides details to individuals within a

Write Your Message!

Captcha
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