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Using a weekend's football results from the Premier (or other) league, see ifthe number of goals per game can be adequately modelled by a Poisson process. Firstcalculate the average number of goals per game for the whole league, then derive thedistribution of goals per game using the Poisson distribution. Do the actual numbers of goals per game follow this distribution? You might want to take several weeks' results toobtain more reliable results.
Various temperature measurements are recorded at different times for a particular city. The mean of 25C is obtained for 60 temperatures on 60 different days. Assuming that pop st/deviation is 1.5C, test the claim that the population mean is 23C. Use ..
shown below is a portion of a computer output for a regression analysis relating y demand and x unit price.anovadf
How is the distribution of 1/C different from the distribution of C? Are there any points that may be more influential in determining the fit?
State the null hypothesis and the alternate hypothesis. State the decision rule. Compute the value of the test statistic. What is your decision regarding the null hypothesis?
Assuming that this probability does not change, he would like to compute the probability that he will score on 1 or more of his next 4 attempts. He should use?
a researcher designs a study to test the hypothesesnbsph0 u gt 28 versusha u lt 28. a ran- dom sample of 50
Find the mean, median, mode, sample variance, and range. Do you think that this sample might have come from a normal population? Why or why not?
a truck repair facility has room to work on 5 trucks at a time. the company has 50 trucks out in the field eah day. the
Find P-Value with 0.05 significance level, and state the conclusion about the null hypotheses (reject or fail to reject) With H1: p is not equal to 3/4, the test statistic is z=0.35
If statistically significant, do you think the difference is large enough to be important?
many investigators have studied the relationship between asbestos exposure and death from chronic obstructive pulmonary
The following table is partial probability distribution for the MRA Company's projected profits ( x= profit in $1000s ) for the first year of operation x f(x) -100 .10 0 .20
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