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Efficient manufacturing:
Efficiency experts study the processes used to manufacture items in order to make them as efficient as possible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of 75 clamps, the mean time step was 55.9 seconds. Assume that the population standard deviation is σ= 12 seconds. Round the critical value to no less than three decimal places.
(b) Find the sample size needed so that a 95% confidence interval will have margin of error of 1.5.
A sample size __ of is needed in order to obtain a 95% confidence interval with a margin error of 1.5 Round the sample size up to the nearest integer.
What statistical analysis would you use to substantiate or rebuff your friend's claim? Do you need additional data? Why or why not?
let x1...x25 be a random sample from a normal distribution with mean mu and variance 100. the null hypothesis h0 mu50
Exxon 20 year bonds pay 9% coupon annually on a $1,000 par value. If the bond sells for $945, what is the bonds expected rate of return?
how many individuals will I need to sample if I want a 95% margin of error to be no more than 3%, I want to know if the results are significant at = 10%. With the information given.
Understand the role of the major EU institutions. Task 3a The Communities Act 1972, which gives legitimacy to the UK's membership of the EU is under threat. Mr Cameron, the UK Prime Minister, has promised a referendum by 2017 to allow the British ..
the upper limit of the 95 confidence interval for the population proportion p given that n 300 and hat p 0.10 is
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Conduct a test to determine whether or not the mean response rates for the packages differ. Solve the hypothesis testing about the equivalence of the package
Compare aerobic respiration, anaerobic respiration and fermentation. How are the processes similar? How are they different?
Compute a 95% confidence interval for the mean using the formula and where is the mean of the ten random numbers.
Perform the Jarque-Berra test of normally distributed returns for each of Boeing and IBM Discuss your findings and also explain why do you test normality test
After that, you expect it to grow at 5% a year forever. Assuming 13% required return, what is the value Java's stock?
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