Calculate a two-sided confidence inerval on mean roddiameter

Assignment Help Basic Statistics
Reference no: EM132848918

A machine produces metal rods used in an automobile suspensionsystem. A random sample of 15 rods is selected, and the diameter ismeasured. The resulting data (in millimeters) are as follows:

8.24 8.25 8.20 8.23 8.24

8.21 8.26 8.26 8.20 8.25

8.23 8.23 8.19 8.28 8.24

a) Check the assumption of normality for rod diameter.

b) Calculate a 95% two-sided confidence inerval on mean roddiameter.

c) Calculate a 95% upper confidence bound on the mean. Comparethis bound with the upper bound of the two-sided confidenceinterval and discuss why they are different.

Reference no: EM132848918

Questions Cloud

Find data on the total dividends paid : You decide to invest in stock in a particular type of company and set the guideline that you will only buy stock in companies that are ranked
How did rhetoric of world war second bring contradiction : How did the rhetoric of World War II bring the contradiction between the principle of equal freedom and the actual status of blacks to the forefront
What is the probability that the average weight of sample : The weight of each package of a certain brand of rice is normally distributed, and the average weight and standard deviation are 5 kg and 0.15 kg respectively.
What would be the bep in units : What would be the BEP in units if variable costs increase by $2 per unit and annual fixed costs decrease by $100,000
Calculate a two-sided confidence inerval on mean roddiameter : A random sample of 15 rods is selected, and the diameter ismeasured. The resulting data (in millimeters) are as follows:
Why did the colonists make the decisions : Why did the colonists make the decisions that led to race based chattel slavery rather than adopting other forms of labor like wage based work
Which items in the company balance sheet are affected : A customer owing $2M for products it already received declares bankruptcy, Which items in the Company balance sheet are affected
Explain why united states decided to join imperialist club : Explain why United States decided to join the "Imperialist Club". Which argument was the strongest, and which argument was the weakest? Explain your position.
What were the real foundations of the trouble in virginia : According to Bacon, what were the real foundations of the trouble in Virginia? How did he propose "to unriddle the misterious wiles of a powerfull Cabal"?

Reviews

Write a Review

Basic Statistics Questions & Answers

  Probability values based on normal distributionthe sony

probability values based on normal distribution.the sony corporation produces a walkman that requires two aa batteries.

  Adults traveling together on vacation

Lodging Cost. A travel association claims that the mean daily lodging cost for two adults traveling together on vacation in San Francisco is at least $240. A random sample of 24 such groups of adults has a mean daily lodging cost of $233 and a sta..

  How much are you willing to pay to buy one share

How much are you willing to pay to buy one share of this stock today if your desired rate of return is 10.0 percent?

  A simple random sample of 10 software widgets are chosen

a simple random sample of 10 software widgets are chosen for installation. if 10 of this type of software widgets have

  Statistics-white blood cell counts

White blood cell counts are helpful for assessing liver disease, radiation, bone marrow failure, and infectious diseases. Listed below are recorded white blood cell counts.

  Variance using given probability distribution

What are the expected value and variance of the following probability distribution?

  For alpha 005 what is your rejection rule make a conclusion

you have made calculations to test scores from 50 students are from a normal distribution. you calculate the mean score

  Translate statements into symbolic form- the packers winning

Translate the following statements into symbolic form using capital letters to represent affirmative English statements.- The Packers' winning most of their games implies that Aaron Rodgers is a great quarterback.

  What is the probability that the employee is a man

FLEX-TIME Of 320 male and 280 female employees at the home office of Gibraltar Insurance Company, 160 of the men and 190 of the women are on flex-time.

  Conduct a test for equality of population means

As the U.S. economy cools down, investors look to emerging markets to offer growth opportunities. In China, investments have continued to grow.

  Significant linear relationship

The city of denver wishes to see if there is a linear relationship between temperature and the amount of electricity used (in kilowatts) Based on the data below, is there a significant linear relationship between temperature and the amount of elec..

  Depict the situation as a game with incomplete information

Depict the situation as a game with incomplete information, in which each type of each player is indexed by the number of e-mail messages he has received.

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