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Question: A random sample of 100 machined shafts produced by manufacturing firm was taken and diameters measured with the results: mean =50.05mm and standard deviation = 0.1mm. If the tolerance specified for the process is 50 +/-0.15mm, what is the expected percentage/number of rejects in a batch of 1 million? Support your answer with relevant sketches.
Develop a research question, testable hypothesis, confidence level, and degrees of freedom. Draw the appropriate conclusions with respect to female and male human resource manager salary levels.
using a significance level of .05, test the hypothesis that the intake of linoleic acid in this group is lower than that of the general population. Also, compute a p-value for the hypothesis test.
Using the data of Exercise 1 and assuming simple random sampling, (a) give the ratio-to-size estimate of the population total and (b) estimate the variance of that estimator.
A survey asked tax accounting firms their business form (S = sole proprietorship, P = partnership, C = corporation) and type of risk insurance they carry (L = liability only, T = property loss only, B = both liability and property).
List the employee numbers for your sample. Find the average salary for your sample and interpret this number.
What is the value of z? Round to two decimal places. Would you reject the null hypothesis? What is the point estimate of µ? Round to two decimal places.
Estimate the first-year college GPA for a student whose high school GPA was 3.5.
We assume that we have selected two independent random samples from populations having proportions p 1 and p 2 and that p-hat 1 = 800/1000 and p-hat 2 = 950/1000
Give a formula for the probability law of the numerical valued random phenomenon described.
Suppose we have 3 distinct people, 4 identical math books, and 5 identical history books. How many different (distinguishable) ways
The purpose of this experiment was to determine how specifically selected water temperature (2 levels), The problem related to Basic Statistics and it discuss about factorial design in ANOVA
Estimate, in millions of pounds, the amount of potato chips eaten during the game. Estimate the relationship of potato chips to popcorn. (twice as much, half as much, three times, none of these- pick one)
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