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Factor the polynomial completely
t^2 - 9w^2
10a^2 + ab - 2b^2
z^4 - 81
Factor each completely given that the binomial following it is a factor of the polynomial
x^3 - 4x^2 - 3x - 10, x - 5
A retail grocer has decided to market organic "health foods" and will purchase a new line of products from each of two suppliers. Unknown to the grocer
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.
A survey of 600 non-fatal accidents showed that 111 involved the use of a cell phone. Find a point estimate for p, the population proportion of accidents that involved the use of a cell phone.
Suppose the random variable X is normally distributed with mean =50 and standard deviation =7 calculate P(X).
Fred received the following scores for his gymnastics routine: 8.5, 7.8, 8.0, 6.8, 7.1, 7.6. To figure out his score, the judges drop the highest and lowest score and then average the rest of his scores.
Construct a scatter plot of P-RFM and P-HELM. If drawing the plot by hand, use graph paper to ensure accuracy.
A study is made by an auto insurance company to determine if there is a relationship between the driver's age and the number of automobile accident claims submitted during a one-year period. From a sample of 300 claims, the following information w..
What does this data tell us by itself before we do anything with it such as doing hypothesis testing or comparing it to other data? How can this be used by the M&M company?
Assume the population standard deviation (s) is 0.5 and the sample size (n) is 100. Calculate the values for alpha, a type I error and beta, a type II error. (To calculate Beta, consider a mean that is 1 standard error away from the lower end valu..
Give the expected value and standard deviation of defective shoes in the ShoeFit store order.
Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean body tem of the population is less than 98.6
A box contains 10 chips. The chips are numbered 1 through 10. Otherwise, the chips are identical. From this box, we draw one chip at random, and record its value.
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