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Suppose x is normally distributed random variable with mu = 11and sigma = 2, find each of the following :
a) p(10<=x<=12)
b)p(6 <=x<=10)
c)p(13<=x<=16)
However, the company recently installed a just-in-time system in which suppliers are linked more closely to the manufacturing process. A random sample of 118 deliveries since the just-in-time system was installed reveals that 22 deliveries were late...
What p-value did you get in your randomization and explain in the context of the problem what the p-value means. What is the variable of interest and what graphical techniques will you use to describe your data?
Directions: Read the following problem. In your submission, please include the following information: a. Determine if the problem is either a test of hypothesis, a confidence interval or something else and specify the 'key words' found in the proble..
Prepare a single summary table that shows average and standard deviation of current salary for males and females according to their Position within the company.
1. a university has been tracking the percentage of alumni giving to its annual fund each for the past 10 years. the
A doctor want to estimate the HDL cholesterol of all 20-to 29 year old females. How many subjects are needed to estimate the HDL cholesterol within 2 points with 99%confidence assuming Q= 15.4 ? suppose the doctor would be content with 95% co..
1. For a given N, the interval that bounds the population mean at the 99% confidence level is ____ that which bounds the population mean at the 95% confidence level. A. equal to B. greater than C. less than D. can't be determined
The Mann-Whitney test, or none of these tests?
The average yearly cost per household of owning a dog is $186.80. Suppose that we randomly select 50 households that own a dog. What is the probability that the sample mean for these 50 households is less than $175.00? Assume = $ 32.
Please read through the case scenario shown below to gain an understanding of the background information and the research study
A simple random sample of 40 salaries of NCAA football coaches has a mean of $415,953 and a standard deviation of $463,364. Construct a 95% confidence interval estimate of the mean salary of an NCAA football coach.
Married Adults. In a recent year, 125.8 million adults, or 58.6% of the adult American population, were married. In a New England town, a simple random sample of 1,445 adults includes 56.0% who are married. Use a 0.05 significance level to test..
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