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A confidence interval estimate for the population mean is given to be (40.45, 49.24). If the standard deviation is 11.159 and the sample size is 35, answer each of the following (show all work):
A) Determine the maximum error of the estimate, E.
B) Determine the confidence level used for the given confidence interval.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
At a 5% level of significance, is there enough evidence from this survey to conclude that more than half of all adults would rather have $100 than a day off?
Assume that male and female births are equally likely and that the birth of any child does not affect the probability of the gender of any other children.
How would you use the concept of probabilities to apply to profiles for hiring more satisfied individuals?
The standard deviation is estimated to be 0.279. Use the 99% level of confidence.
Utilize the given degree of confidence also sample data to construct a confidence interval for population proportion.
Develop a hypothetical table of data using a grid of 3 rows and four columns.
Conduct a 3-period moving average, an exponential smoothing forecasting using an alpha of .25, and a seasonal forecast with 3 seasons.
Compare the unconditional probability of having the disease to the conditional probability of having the disease given the test says you have the disease.
Calculate power of test if researcher uses a sample of n = 16 individuals.
The Manager of a seafood restaurant was asked to establish a pricing policy on lobster dinners. Experimenting with prices produced the following data:
Looking at the data, the manufacturer is incorrect in its label claim. Perform hypothesis testing to prove or disprove it. Is the manufacturer correct in its label claim? Explain.
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