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The daily catch of a small turn-fishing fleet from ocean foods company has averaged 130 tons over the last few years, with a standard deviation of 42 tons. The probability that during a sample of four (4) fishing days, the weight of the daily catch will be between 109 tons and 151 tons is
A 0.3830B 0.6170C 0.6826D 0.8413E cannot be determined unless the weight of the daily catch is normally distributed.
Quality Progress, February 2005, reports on improvements in customer satisfaction and loyalty made by Bank of America. A key measure of customer satisfaction is the response (on a scale from 1 to 10) to the question
An independent testing services road-tested 36 of the automobiles.
The test statistic for a two-sided significance test for a population mean is z = -2.12. What is the corresponding P -value?
normally distributed with a population mean of 2.5 and a population standard deviation of .5. Compute the following, showing all work: The percentage of students with GPA's above 3.0 is?
How do we go about interpreting the results of various types of statistical tests in health care research?
Air-America has a policy of booking as many as 14 people on an airplane that can seat only 12. (Past studies have revealed that only 92% of the booked passengers actually arrive for the flight.)
Suppose also that we can buy a bond at time 0 for $.90 that will be worth $1 at time 1. What should the price of this option be? Does the assumption of no arbitrage answer this question?
Determine the number of monic irreducible polynomials of degree 4 in F_q without using the Moebius Inversion Formula.
Test the assumption that the more experienced consultant has higher satisfaction ratings at the 5% significance level. Show all steps.
A chemical process converts lead to gold. However, the production varies due to the powers of the alchemist. It is known that the process is normally distributed, with a standard deviation of 2.5 g. How many samples must be taken to be 90% certain..
If the sample size (n) is large, and the sample is a random sample, then the distribution of the sample mean x-bar is approximately a:
The professor plots a histogram of these several proportions. Should a Normal model be used to represent the sampling distribution of the proportion of tails?
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