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Suppose the monthly income of assistant managers of our local banks are normally distributed with mean of Php40,000 and a standard deviation of 5,000. What is the probability that if an assistant manager is chosen at random then his income is between 35,000 and 40,000?
The credit score of a 35 year old applying for a mortgage at Ulysses Mortgage Associates is normally distributed with a mean of 600 and a standard deviation of 100.
Brakes for a model of automobile fail with a Poisson distribution at an annual rate of 4.4/yr. What is the probability that
What is one of the two differences between the way ZST or ZLT are calculated?
A recent study stated that if a person chewed gum, the average number of sticks of gum he or she chewed daily was 8. To test the claim, a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per d..
A new-car dealer is leasing various brand-new models for the monthly rates(in dollars) listed below. Estimate the true population variance and standard deviation in leasing rate with 90% confidence.
Using an alpha of .05, what can you conclude about homogeneity of variance from the output? Word process your responses on the SPSS output pages.
Given the above function, use the four-step process to find a slope predictor function m(x). Then write an equation for the line tangent to the curve at the point x = 8.
An airline estimates that 90% of people booked on their flights actually show up. If the airline books 71 peopleon a flight for which the maximum number is 69, what is the probability that the number of people who show up will exceed the capacity ..
What is meant by illusionary correlations? Why is it so difficult for individuals to disprove their beliefs in correlations that are actually false?
Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI.
A research firm conducted a survey to determine the mean amount people spend at a popular coffee shop during a week. They found the amounts spent per week followed a normal distribution with a population standard deviation of $4.
A professor obtains SAT scores and freshman grade point averages (GPAs) for a group of n=15 college students. The SAT scores have a mean of M=580 with SS=22,400, and the GPAs have a mean of 3.10 with SS=1.26, and SP=84.
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