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Problem:
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 for 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.
list some of the risks in using samples to make inferences about populations from which the samples were drawn. what
The following sample data were obtained from three populations that did not follow a normal distribution. Compute the value of the test stastic. What is your decision on the null hypothesis?
Set up a 99% confidence interval estimate of the true population mean amount of glue contained in a 2-litre can. On the basis of your results, do you think that the quality control analyst has a right to complain to the manufacturer?
Determine a 99% confidence interval for the true difference between the failure proportions during the warranty period. How precisely have we estimated µ1 - µ2?
Managers at the Dew Drop Inn are concerned about the increasing number of guests who make reservations but fail to show up. They have decided to institute a policy of over-booking like larger hotel chains
Is the sample size large enough to construct a valid confidence interval for the proportion of debit cardholders who have used their card in making purchases over the Internet?
Discuss the assumptions for using a chi-square test. Research articles using and provide practical examples from the reseach to support your assumptions.
a toll bridge charges 1.00 for passenger cars and 2.75 for other vehicles. suppose that during daytime hours 60 of all
What is the numerical value of the sample proportion p^ ? The P-value is the probability of what event?
Discuss the methods of presentation of data through graphs and diagrams. Discuss the various types of graphical presentation of data.
For a given level of significance, if the sample size is increased: the power of the test will increase we will have more responses to log and calculate it will skew the mean to the right it has no effect on the direct results.
how is the rejection region defined and how is that related to the zscore and p
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