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

Testing the hypothesis type 1 and type 2 error, ...if a transit employee pr...

...if a transit employee provides a strand of hair for drug testing, state the null and alternative hypothesis in verbal terms, then identify what would constitute a type 1 and typ

Obtain the p-value for the value of the test statistic, A study looked at t...

A study looked at the relationship between coronary heart disease (CHD) and coffee consumption in a group of 40-55 year old men. Among the 790 heavy coffee drinkers (at least 100 c

Cost management, if sales is 6800 and variable costs are 2856 what is the v...

if sales is 6800 and variable costs are 2856 what is the variable cost percentage?

Average Speed in Various Cases, Define Average Speed in Various Cases (a) ...

Define Average Speed in Various Cases (a) Particles covering different distances in different times say a particle covers s1 distance in time t1 ,s2 in time t2, s3 in time t3 and

Simple Linear Regression, One measure of the risk or volatility of an indiv...

One measure of the risk or volatility of an individual stock is the standard deviation of the total return (capital appreciation plus dividends) over several periods of time. Altho

Tally, what is meant by tally

what is meant by tally

Normal distribution, For a normal distribution why do we calculate the prob...

For a normal distribution why do we calculate the probability of a range of numbers instead of the probability of a single number?

Definition, Definition of statistics according to Prof. Ya lu chan

Definition of statistics according to Prof. Ya lu chan

Find the p-value of the test hypothesis , It is known that the average heig...

It is known that the average height of a man residing in the Canada is 174 cm and the standard deviation is 8 cm. Assume the heights are normally distributed. To test the hypothesi

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