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A manufacturer claims that the life span of its tires is 47,000 miles. You work for a consumer protection agency and you are testing these tires. Assume the life spans of the tires are normally distributed. You select 100 tires at random and test them. The mean life span is 46,856 miels. assume standard deviation is 700. assuming the manufacturer's claim is correct, what is the probability that the mean of the sample is 46,856 miles or less?
Are they weak or strong correlations - what is the significance value and what does the significance value reveal about the data we have used?
Two fair dice are thrown and you are told that both of them show an even value. What is the probability that exactly one of them shows a six? (I don't understand how they got the answer)
Develop a LP model to minimise the total cost for the Wade Co. to meet the demands for the next three months. Use a suitable computer software to solve the LP problem.
What criticisms of Platonic Forms are given by Aristotle and Wittgenstein?
condence interval fornbspmu when sigma is knownsuppose n 9 people are selected at random from a large population.
EIHP Assessment 2 – Interpreting Basic Statistical Data, Article: Ramirez, G. & Beilock, S.L. (2011). Writing about testing worries boosts exam performance in the classroom. Science, 331. 211-213. This article is page 74-77 of your handbook.
Unbiased Estimators: What is an unbiased estimator? Is the sample variance an unbiased estimator of the population variance? Is the sample standard deviation an unbiased estimator of the population standard deviation?
For this portion of the activity, you will export output you created while working in SPSS for Chapter 4 into a Word document. Please read the instructions below to ensure you are including the correct material in your document (This chapter ha..
1 )The college student senate is sponsoring a spring break Caribbean cruise raffle. The proceeds are to be donated to the Samaritan Center for the Homeless. A local travel agency donated the cruise, valued at $2000. The students sold 2544 raffle tick..
Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000. Suppose that one such poll asks voters how they ..
What research design was used this study
Explain the bias and sampling error
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