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The following problem should be answered in R:
Generate 50 normal distributions with mean= 15 and standard deviation= 3 with a sample size of 30 each. For each of these data sets, calculate the 90% con dence interval.
(a) How many of the 50 confidence intervals contain the population mean?
(b) Is this number that you calculate the same as you would expect? Why or why not?
(c) Answer the question in (a) for the 95% confidence interval
Is this correlation statistically significant? He also found the regression coefficient to be -1.66. Is this regression coefficient statistically significant? Explain why or why not for each.
How can the Binomial and Poisson probability distributions be utilized in solving business and marketing related questions? Identify an example of each.
There are infinitely many primes of the form n^2 - 1. Please list at least 4 of these primes. (I hope it is just as easy as I think, but is there any work to this?)
So what you send is what you see, no more and no less. handgun would it be possible to register this firearm? What is the process?
in a past election the voter turnout was 51. in a survey 843 subjects were asked if they voted in the election. find
a population has a mean of 129. if a random sample of 8 items from the population results in the following sampled
What is a factor? How can the use of factors benefit a design, explain main effects and interaction effects and how does a covariate reduce noise?
Find the P-value that would be used to determine if the percentage of customers who prefer mint chocolate chip ice has increased at a 5% level of significance.
Use the study to estimate the risk of an air bag fatality on a child seated on the front passenger seat.
A doctor advices a patient to go on a particular diet for 2 weeks. Considering the general condition of the patient, the amount of weight the patient may loose is assumed to be between 5 Kg and 10 Kg,
In playing the Lemonade Stand Game, Bob decreased his price per cup by two cents, from $.27 per cup to $.25 per cup. At the .05 level of significance, did net revenue increase?
Each student in an experiment was told to look at 100 cars and count the number of people wearing the seat belts. The mean score for the class was found to be 44, and standard deviation =7
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