Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Statistics and Probability Expert

A sample of size 40 from housing units is selected and a hole diameter for bushings on the housings is determined for each one, resulting in a sample mean of 5.426 mm. In addition, historical data suggested that the distribution of hole diameters was normal with a standard deviation of .100 mm. Calculate a 90% confidence interval for the true average hole diameters, and give the interpretation.

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M91012456

Have any Question?


Related Questions in Statistics and Probability

If net income in 2012 956 and if the following changes

If net income in 2012 = $956, and if the following changes occur between 2011 and 2012, compute Net Cash Flow from Operating Activities for 2012: Accounts receivable change from $157 to $237 Gross fixed assets change fro ...

Penney wishes to borrow 75000 today for the purchase of

Penney wishes to borrow $75,000 today for the purchase of bakery equipment. She have an agreement with their commercial banker that she can borrow money at an annual rate of 7.75%. How much will she owe if she repay the ...

A sample of 100 people is classified by gender malefemale

?A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 80 females and 20 males, and has a total of 60 registered voters. If these data are used for ...

From a random sample of 41 teens it is found that on

From a random sample of 41 teens, it is found that on average they spend 31.8 hours each week online with a standard deviation of 3.65 hours. What is the 90% confidence interval for the amount of time they spend online e ...

A set of score has a mean of mu 63 and a standard

A set of score has a mean of μ = 63 and a standard deviation of σ = 8. If these scores are standardized so that the new distribution has μ = 50 and σ = 10, what new value would be obtained for a score of X = 59 from the ...

You ask your roommate to mail a letter for you suppose

You ask your roommate to mail a letter for you. Suppose there is a 0.21 probability your roommate will forget to mail it.  Should your roommate mail your letter, there is a 0.9 probability that Canada Post will deliver t ...

A researcher randomly assigned 160 subjects into one of two

A researcher randomly assigned 160 subjects into one of two groups: Atkins diet or Weight Watchers. The response variable was weight change in pounds after 6 weeks. The t-test results showed a p-value=.049. What can be c ...

Based on the 1990 census the number of hours per day adults

Based on the 1990 census, the number of hours per day adults spend watching television is approximately normally distributed with a mean of 5 hours and a standard deviation of 1.3 hours. What proportion of the population ...

Parents who did not finish high school have sat math scores

Parents who did not finish high school have SAT math scores X with mean 451 and standard deviation 103. Scores Y of children of parents with graduate degrees have mean 567 and standard deviation 104. Perhaps we should st ...

The table to the right shows the results of a survey in

The table to the right shows the results of a survey in which 2575 adults from Country? A, 1126 adults from Country? B, and 1072 adults from Country C were asked if human activity contributes to global warming. Complete ...

  • 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