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Assume that a random sample is used to est. a population proportion p. find margin of error E that corresponds to the given statistics and confidence level. 98% confidence sample size 1166 of whic are 35% successes. What is margin of error?
What is the probablity that there are no tremors in a 1-month period? What is the probability tha there are more than 5 tremors in a 6-month period?
Test at the 1% significance level whether currently all adult men spend less than 11 hours per week watching sports on tv. Calculate the p-value for this problem and conduct the test using the p-value method.
A bag contains 4 chips of which one is red, one is blue, one is green, and one is yellow. A chip is then selected at random from a bag and then replaced in the bag.
Given that the pair of hypotheses that correspond to the claim are H0=500. Find the critical value for the hypothesis test.Assume that the level of significance is 0.02.
Increasing confidence level will increase width of confidence interval. This is because the fact that increasing confidence interval will increase value of z(α/2), which will increase the size of standard error (z*s/√n).
Each contact will result in either no sale or a $50,000 sale, with the probabilities .9 and .1, respectively. Give the probability distribution for daily sales. Find the mean and standard deviation of the daily sales.
The average American male wears a size 10 shoe and spends 4 hours a year tying a tie. The average American female college student owns 3.5 pairs of jeans.
On their farm, the Friendly family grows apples that they harvest each fall and make into three products- apple butter, applesauce, and apple jelly.
Assume the results of different games played in the series are independent of each other. Find the p.m.f. of the distribution of N := duration" of the baseball series.
Discuss a scenario where two-sample hypothesis testing might be useful for you. Explain what a type 1 error would mean for this scenario. Explain what a type 2 error would mean.
Compute the following linear programming problem and describe the special case of a linear programming problem in which.
A state survey investigates either the proportion of 8percent for employees who commute by car to work is higher than it was five years ago.
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