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A distribution has 32 scores. Each score appears once, with the following exceptions: The score of 18 appears twice, and the score of 21 appears twice. How would you state the mode of the distribution?
Assume an acceptable type I error rate of 0.05. Also assume that it is desired to detect shifts in the process mean of 0.15 oz. Construct a cumulative sum chart and determine whether the machine needs to be adjusted to meet the target weight.
Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.
There is a confidence interval reported in this statement. Explain what it is and what characteristic of the population it is measuring.
1 due to normality the formula for computing z is the same for a single data value as it is for an average of the data
Tattoos. A study by the University of Texas Southwestern Medical Center examined 626 people to see if an increased risk of contracting hepatitis C.
the mean weight of luggage check by a randomly selected tourist-class passenger flying between two cities on a certain
Mean and SD of the number of matches. There are n balls labeled 1 through n, and n boxes labeled 1 through n. The tables are distributed randomly into the boxes
You are running a one-sided test of H0: μ = μ0, where q is the appropriate quantile/critical bound. (Note: q may be positive or negative, depending on the test.) Do you reject H0 if H1: μ > μ0 and t > q?
On page 336 of the text we are given a formula to calculate the minimum necessary sample size n. When we do not know the estimates p hat and q hat, we are told to use a value of 0.5 for each of them. Why?
Think of a manufacturing company in Ethiopia to which you are familiar and discuss a) the different types of marketing channel flows in the channel system; b) the positive and negative effects of environmental factors on the distribution practices ..
At a certain stage in a trial, the judge feels the odds are two to one the defendent is guilty. It is determined that the defendent is left handed.
Calculate the following probabilities and indicate which probability distribution model is appropriate in each case. A very good darts player
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