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Only 2% of a large population of 100-ohm gold-band resisters have resistance that exceed 105 ohms. What is the probability that the proportion of resisters with resistance exceeding 105 ohms in a random sample of 400 will be less than 3%?
Below is a normal plot of residuals from a regression. Does the plot indicate any problems with the assumption that the residuals are Normally distributed
Two impendent samples of signs 9 and 8 gave the sum of squares of deviation from their respective means as 160 and 91 can the samples be regarded as drawn from the normal population with equal variance
A corporate CEO reviews the earnings of three divisions over the last eighteen months. Each division reports its earnings quarterly.
In a study, results were presented for a sample of 63 men who were asked to report their actual weight and their ideal weight. The mean difference between actual and ideal weight was 2.48 pounds
While taking a multiple choice test, I realize I cannot answer the 5 questions without guessing. There are 5 choices for each question, A B C D or E.
What other information would you like to know to answer the question about salary equity between the genders? Why?
A process follows the binomial distribution with n = 8 and p = .3. Find
what is the probability that on 10 true of false questions 4 will be correct and 6 incorrect out of plain
What is an estimate of the proportion defective for the piston manufacturing process when it is control? Construct a p chart for the manufacturing process, assuming each sample has 200 pistons.
Calculate and compare the means for IQ as a dependent variable and gender as your independent variable. Do you think males and females differed in their IQ scores? Why?
Were the frequency distributions used effectively to report the results? Why or why not? Find an example of a presentation of statistics using a frequency distribution(s) from any media source.
find poisson approximations to the probabilities of the following events in 500 indepen- dent trials with probability
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