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Consider a hypothesis test on a mean of a normally distributed population where the hypothesis are H0: (mean)=10. H1: (mean) > 10 and the characteristicts are n=25, Standard Dev= 2, Alpha =.05 What is the probability of a type II error if the true mean = 12
Proportion nonconforming is 0.10. what is the probability of (1) 1 nonconforming unit in the sample (b) 1 or less (c) 2 or more?
A customer wants to estimate the average delivery time of a pizza from the local pizza parlor. The customer wants to obtain a sample mean that falls within 3.204 minutes of the true average delivery time with 99% confidence. If the customer knows ..
Explain and give an example of: z-tests, t-tests, single sample t-tests, a dependent sample t-test, or an independent sample t-test.
The number of passengers arriving at an airport terminal average 1200 each hour. To process passengers (check in, take luggage, etc) take an average of 6 minutes each. There are 6 airport staffers processing passengers. How long is the average wai..
Assume you have the following data: Ho: u = 2,450, S = 400, n = 100, and X = 2,300. Conduct a hypothesis test at the .01 significance level.
In a standard test for reaction time, female candidates for flight school are found to have times that are normally distributed with a mean of 0.65 seconds and a standard deviation of 0.15 seconds.
Use the library, Internet, and other available resources to develop a 6–8 page research proposal that includes the following:Introduction to your topic "Police Discretion" and related issues (variables)
the quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes
Assume that the heights of 5 year old boys are normally distribued with a mean of 100cm and a standard deviation of 60. What is the sampling distribution of the mean for a sample size of 900 and its confidence interval at the 99% level?
if the analysis of variance f test leads to the conclusion that at least one of the model parameters is non-zero can
1.i read an article about a new drug which stated that the incidence of side effects was similar to placebo p-value gt
A survey of 800 women shoppers found that 17% of them shop on impulse. What is the 98% confidence interval for the true proportion of women shoppers who shop on impulse?
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