Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

We want to compare two unknown population means.

a) Compute the 95% confidence interval for the difference between the two population means if the sample means are 75 and 70 and the margin of error for the CI is 3.4.

b) Is it plausible that one population mean is eight larger than the other? Explain.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M92506510
  • Price:- $10

Priced at Now at $10, Verified Solution

Have any Question?


Related Questions in Statistics and Probability

A travel analyst claims that the mean room rates at a

A travel analyst claims that the mean room rates at a three-star hotel in Chicago is greater than $152. In a random sample of 36 three-star hotel rooms in Chicago, the mean room rate is $165 with a standard deviation of ...

A researcher records the sound in decibels during a series

A researcher records the sound (in decibels) during a series of lessons taught by a substitute teacher at a local elementary school. In his study, he found that the sound was 20±2 (M±SD) decibels. Assuming the data are n ...

Your companys revenues were 3 million this year you paid

Your company's revenues were $3 million this year. You paid out $500,000 in salaries and your only other cash outflow was the purchase of a piece of construction equipment for $1 million that is to be depreciated to a ze ...

On average the parts from a supplier have a mean of 975

On average, the parts from a supplier have a mean of 97.5 inches and a standard deviation of 12.2 inches. Find the probability that a randomly selected part from this supplier will have a value between 85.3 and 109.7 inc ...

If the lengths of male skis and female skis are used to

If the lengths of male skis and female skis are used to construct a? 95% confidence interval for the difference between the two population? means, the result is 14.32cm

A nutritional scientist wishes to study the effect of

A nutritional scientist wishes to study the effect of storage time on the amount of vitamin C (milligrams) contained in 50 gram freeze dried fruit packs when stored for one, one and a half and 2 years. Five fruit packs w ...

List the three assumptions of the independent groups t-test

List the three assumptions of the independent groups t-test. The consequences of violating which assumption are exacerbated if you have unequal N

An independent measures study with n 6 in each sample

An independent measures study with n = 6 in each sample, produces a sample mean difference of 4 points and a pooled variance of 12. What is the value for the t statistic?

In a pre-election poll a candidate for district attorney

In a? pre-election poll, a candidate for district attorney receives 253 of 500 votes. Assuming that the people polled represent a random sample of the voting? population, test the claim that a majority of voters support ...

There are 2 white balls and 8 red balls in an urn consider

There are 2 white balls and 8 red balls in an urn. Consider selecting one ball at a time from the urn. What is the probability that the first ball is red and the second ball is also red? Express the probability in fracti ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As