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Use the binomial function to answer the following questions (there is no data set here): Suppose a shipment of 410 components contains 70 defective and 340 non-defective computer components. From the shipment you take a random sample of 20. When sampling with replacement (binomial), determine the probability of obtaining:
a. Exactly two defective components in the sample of 20.b. Four or more defective components in the sample of 20.c. Four or less defective components in the sample of 20.d. Between one and four (inclusive) defective components.e. More than three defective components.f. What are the mean and variance of this discrete random variable?
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
The US Mint selects ten pennies from the production line to test the hypothesis that the mean weight of each penny is 5 grams. The normally-distributed weights (in grams) of these pennies are as follows:
A neuropsychologist compare the auditory abilities of blind versus normally sighted rats. He predicted that the visually impaired rats would have better auditory development than normally sighted rats.
Develop a 90 percent confidence interval for the proportion opposing health care changes. (Round your answers to 4 decimal places.)
Marketing firm asked the random set of married and single men as to how much they were eager to spend for vacation. At alpha= .05, is a difference in two amounts?
How would you interpret the findings of a correlation study that reported a linear correlation coefficient of +0.3?
The demand for airplane passengers (Y) is a function of a average fare (X1), the fare of the competing airline, and the annual per capital income of the passengers(X3)
Construct a scatter plot of P-RFM and P-HELM. If drawing the plot by hand, use graph paper to ensure accuracy.
Test hypothesis that two processes have identical fractions nonconforming. Use a = 0.05. Create the 90% confidence interval on difference in fraction nonconforming between two processes.
Assume a one-tailed t -test is being applied to determine if population mean is less than $212. Level of significance chosen is 0.01 and 26 accounts are sampled. Determine the critical value?
Evaluate the importance of each of these sums of squares. Give the 99% Scheffe confidence intervals for the linear and quadratic contrasts.
The local operations manager for the IRS must decide whether to hire 1, 2, or 3 temporary workers. He estimates that net revenues will vary with how well taxpayers comply with the new tax code.
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