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One can calculate the 95% confidence interval for the mean with the population standard deviation known. This will give us an upper and a lower confidence limit. What happens if we decide to calculate the 99% confidence interval? Describe how the increase in the confidence level has changed the width of the confidence interval. Do the same for the confidence interval set at 80%. Please include an example with actual numerical values for the intervals in your post.
What is the probability that the experiment will find (misleadingly) that the mean score for delayed speaking is at least as large as that for early speaking?
1 the test averages for 40 students are listed below. use 8 classes not bins to construct a frequency distribution
Suppose Ana has a pair of dice (the traditional six-sided kind). Let X= the difference of the largest minus the smallest number showing on the dice. Find the PMF for X.
Use decision analysis tools discussed in class to determine what action the firm should pursue in order to minimize expected loss; either manual analysis or software is acceptable. Please also calculate the minimum expected loss.
Calculate the slack time for each activity and for each path and looking at only the critical path, find the probability that the store will take more than 23 working days to open.
In 2005, Britain raised the age at which retirees can get public pensions from 65 to 67. One newspaper, the Daily Telegraph, argued that "one in five who formerly would have lived long enough to receive a pension will now die before receiving a penny..
Evaluate the correlation coefficient.
What is the confidence level (in percentage) of the following confidence interval of M : X+- 2.45(s/(n)^2)
Polychlorinated biphenyl (PCB) is among a group of organic pollutants found in a variety of products, such as coolants, insulating materials, and lubricants in electrical equipment. Disposal of items containing less than 50 parts per million (ppm) PC..
What is the latest possible time that Activity E can be started without delaying the completion of the project and what is the latest time that activity B can start without delaying the project
1. listed below are the numbers of people executed in the united states from 1976 nbsp to 1994. in 1976 the u.s.
Evaluate the expected value of the total number of sales
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