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Assume that women's heights are normally distributed with 64.5 in, and a standard deviation given by 2.3 in. a. if 1 woman is randomly selected, find the probability that her height is less than 65 in. b. if 46 women are randomly selected, find the probability that they have a mean height less than 65
When should a standard cost variance be investigated? Explain why the materials price variance is often computed at the point of purchase rather than at the point of issuance.
Chance of winning $100 or more on a type of casino slot machine is 2.3% when playing the maximum bet for one hour. A couple enters the casino and plays these machines for an hour. What is the chance that one of them wins $100 or more? What is..
A randomly chosen individual makes 3 claims
The untreated population mean (those who did not receive the new teaching method) on the exam was p = 100. Using a two-tailed test and a = .05, test to see whether the scores on the math exam for those using the new teaching method was significant..
Find the relation of question with some of the factors you think important as motivators of choosing the medical profession. Why do you choose these factors?
Use excel to generate scatterplots, descriptive statistics, and regression equations.An additional observation at the bottom of the data file, needs to be added to the dataset. You should clearly mark on the Excel or Minitab file, which dataset (enti..
We are evaluating the sheet metal scrap rate in a contractor proposal. Based on a sample of 28 parts you calculate a mean rate of 6.50% (treat as 6.50) and a standard deviation of 1.20. Calculate a 80% confidence interval to be used to support negoti..
The population characteristics of two random variables
Based on the number and types of variables present, select the most appropriate display for each of the following: Rent charged (in dollars) and apartment size (in sq. ft.) of a sample of one-bedroom apartments in State College. A) Bar Graph B) Histo..
It is known that 35% of the members of a certain population suffer from one or more chronic diseases. What is the probability that in a sample of 200 subjects drawn at random from this population 80 or more will have at least one chronic disea..
Regression analysis is one of the most widely used statistical techniques in the social sciences. So, what is it? In your answer, apply some of the techniques we have learned to regression -
Accepting Manipulation or Manipulating
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