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Assume that the data has a normal distribution and the number of observations is greater than 50. Find the critical z value used to test a Null Hypothesis where ? = 0.1 for a right-tailed test.
find the 95 confidence interval for estimating ?d based on these paired data and assuming normality. give your answers
question a recent survey of banks revealed the following distribution for the interest rate being charged on a home
the variance in drug weights is critical in the pharmaceutical industry. for a specific drug with weights measured in
Suppose that the following data were obtained for a collection of archaeological sites in New Mexico: Calculate the sample correlation coefficient r.
The Boss is a small Italian restaurant with 6 waiters and waitresses. The average service time at the restaurant for a table (of any size) in 80 minutes (exponentially distributed).
If random sample of 9 loads is selected for weight check, determine probability that mean weight of those loads is more than 40.60 tons.
Using one mean Z test to test whether or not to support the claim - Is there evidence that the average hours is below 6? Describe.
We have discussed two different methods for making statistical inferences such as developing interval estimates and conducting hypothesis tests. These methods are the "Critical Value Method" and the "P-Value Method".
You estimate that the probability of getting both jobs is only 0.1. What is the probability that you get exactly one of the jobs?
suppose a linear regression equation was calculated to fit the relationship between the percentage of the adult
confidence interval estimate for the population mean is given to be 35.81 44.40. if the standard deviation is 10.126
Pretest-posttest design and internal validity threats - please discuss all threats to internal validity.
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