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Romance USA Today reported that 11% of all books sold are of the romance genre. If a local bookstore sells 316 books on a given day, what is the probability that,
A. fewer than 40 are romances?
B. at least 25 is romances?
C. between 25 and 40 are romances?
d. In the solution to this problem, what is n? p? q? Does it appear that both np and nq are larger than 5? Why is this an important consideration?
The firm examined 35 randomly chosen fax transmissions during the next year, yielding a sample mean of 14.44 with a standard deviation of 4.45 pages.
Conduct post hoc comparisons with the LSD method. Which groups differ significantly at α = 0.05?
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots.
Find out which (t-, z- or neither) distribution is suitable Then if you can utilize either a t- or z- distribution, provide associated critical value (critical t- or z- score) from that distribution to reach given confidence level.
Assume that the amount your town's population grows every year is fixed or constant. Utilize your equation in part b to approximate the population in the year 2030.
If a proposal evaluator randomly selected two proposals, what is the probability that both of them met the specified?
Determine the best replacement policy over the next five years?
A point estimate for the difference between the mean purchases of the users of the two credit cards is:
A sample of 40 decaffeinated-coffee drinkers showed a mean of 5.84 cups per day, with a standard deviation of 1.36 cups per day. Use the .01 significance level. Compute the p-value.
Then describe trade-offs which will happen when you lower sample to $10,000 to meet their budget.
Confirm whether given random variable is binomial distribution or not. If this experiment is finished with replacement, explain why.
The student with the 92 found a grading error on her exam and her correct grade was 95. There were no other grading errors. After correcting this student's paper, the five number summary for the midterm exam will be
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