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1.Compute a 95% confidence interval for the mean saline of the tears. You select a random sample of 100 tear drops. The sample has an average salt concentration of 0.1 with a standard deviation of 0.01.
2. In class a poll was conducted that I will get 60% of my work correct.To be 95% confident that I am within 2% of the vote I will actually receive, how many voters should have been
At the .05 level of significance, is there evidence of a difference in variability in the shipping time between the two outlets? What decision should the carpet manufacturer make?
In the Distance problems, the kids are given a Rate (speed) that a vehicle is going, as well as a Time that the vehicle travels, and asked to calculate the Distance travelled. In the Rate problems they are asked to compute Rate from the other two ..
To recognize the width of the confidence interval.As the confidence level \"1 - α\" increases, the width of the confidence interval.
The Manager of a seafood restaurant was asked to establish a pricing policy on lobster dinners. Experimenting with prices produced the following data:
Find the probability that at least one subject experiences headaches. Is it unusual to have at least one of six subjects experience headaches?
Given this information we could use a Z test for two independent means and conclude that indeed the sales are different when the soup is a featured item.
Would it be reasonable to conclude that the population mean is 63 pounds?
Assuming that all other variables are held constant, explain how the value of z influenced by each of the following:
Calculate a 99% confidence interval for the true mean difference between pretreatment and after treatment testosterone levels of young male TBI patients.
What is the 95 percent interval for the population mean?
In Colorado Springs the newspaper runs mug shots of wanted criminals. The 17% of those published are arrested through information provided to the police. If 200 are published, find the probability that less than 30 are arrested.
Give the expected value and standard deviation of defective shoes in the ShoeFit store order.
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