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Write a program to add random numbers chosen from [0, 1] until the first time the sum is greater than one. Have your program repeat this experiment a number of times to estimate the expected number of selections necessary in order that the sum of the chosen numbers first exceeds 1. On the basis of your experiments, what is your estimate for this number?
what is the probablity that a person selected at random from this hwas data set is horter than 65 or taller than
A university has studied the relationship between the GPA (grade point average) of its graduates and StartSal, their starting salaries (in thousands of dollars). A sample of seven graduates was randomly selected.
Modify the spreadsheet above to accommodate the possibility of v not equal to 1. Use excel data table (1 dimensional) to check the sensitivity of the portfolio's std dev as a function of v. Vary v from .05 to 1.5 in .05 increments.
a school of optometry conducts a study in which 50 workers arerandomly selected from the population of white-collar
Find a 95% confidence interval for the true mean amount that citizens spend per year. What do you think the lowest possible mean amount spent per year is? Why?
Maximal static inspiratory pressure (PImax) is an index of respiratory muscle strength. The following data show the measure of PImax (cm H2O) for 15 cystic ?brosis patients.
a paired samples t test may be thought of as which of the following?answermcnemars test when it is referenced to a
the speed at which you can log into a website through a smartphone is an important quality charactersitc of that
suppose random poll of 632 likely voters in alabama found that 373 feel that daylight savings time should be abolished.
question in a completely randomized design 10 experimental units were used for the first treatment 12 for the second
Design a contingency table that will hold your data. What are your degrees of freedom and critical value at a 0.05 confidence level? You do not need data to answer this.
Calculate the population mean and population standard deviation.
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