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Problem 1: Amy is a private coach in a gym. In order to encourage her clients to come to her training sessions regularly and on time, she decides to establish a fund of $1,000 from which she will pay an amount, q, at the end of the year to each of her 20 clients who achieve perfect attendance over that year.
Suppose each client has a 1% chance of achieving perfect attendance during any given year, independent of any other client. Determine the maximum value of q such that there is a less than 1% chance that the $1,000 fund will be inadequate to cover all payments for perfect attendance.
To what probabilities do each of the following sigma levels correspond to, based on a standard normal curve: 3 sigma, 4sigma, 5 sigma, and 6 sigma? (Hint: Use the NORMSDIST function in Excel.
For the following scores, find the (A) mean, (B) median, (C) sum of squared deviation (d) variance, and (e) standard deviation:
What is the probability that a randomly selected high school senior's score on the mathematics part of the ACT will be more than 29?
suppose that the distribution of net typing rate in words per minute wpm for experienced typists can be approximated by
Suppose that the population of 25-year-old American males has an average remaining life expectancy of 50 years with a standard deviation of 5 years and that life expectancy is normally distributed. What proportion of these 25-year-old males wil..
a supplier contract calls for a key dimension of a part to be between 1.88 and 2.12 cm. that is a part will not be
Population standard deviation of 5 and you select a sample size of 100, what is the probability that the sample mean is between 47 and 49.5?
Describe the difference between the distribution of the observed sample values from a population and the distribution of means calculated from samples of size n.
serum ferritin is used in diagnosing iron deficiency. in a study conducted recently researchers discovered that in a
On average a certain intersection results in 3 traffic accidents per month. What is the probability that for any given month at this intersection
Find a dataset: approximately 30-100 scores or observations. Write a null and alternative hypothesis, conduct a statistical significance test (in SPSS or Excel), and tell what decision you'd make about the null hypothesis, and why.
Which are totally defective and will not light up. Given that a randomly chosen bulb initially lights, what is the probability it will still be working after one week?
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