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In each of the following cases, indicate whether classical, empirical, or subjective probability is used.
A. A baseball player gets a hit in 30 and out of 100 times at bat. The probability is .3 that he gets a hit in his next at bat.B. A seven member committee of students is formed to study environmental issues. What is the likely hood that anyone of the seven is chosen as the spokes person?C. You purchase one of 5 million tickets sold for lotto Cananda. What is the likely hood you win the 1 million jack pot?D. The probability of a earthquake in Northern Calfornia in the next 10 years above 5.0 on the richtersccale is .80.
An automobile manufacturer would like to know what proportion of its customers are not satisfied with the service provided by the local dealer. The customer relations department will survey a random sample of customers and compute a 99% confidence..
Use Excel and the data to test whether the mean alcohol expenditures for UCM students is equal to that of SBU students using a 1 % level of significance.
Make a worksheet in Excel for your calculations. (b) Make a histogram of the data. Would you be justified in using a parametric t test that assumes normality? Explain.
One use of the Chi-square goodness of fit test is to determine if specified multinominal probabilities in the null hypothesis is correct.
Suppose Napoleon were using Bayes' theorm to revise his information. To do so, he would have had to make some judgements about P(Prussian and English Join forces |Napoleon Wins) and P(Prussian and English Join forces |Napoleon loses).
Show all the steps of your hypothesis test including a) the claim being tested , b) the null and alternative hypothesis, c) the test statistic, d) the p value, e) initial conclusion, and f) a final conclusion about the original claim.
Compare the mean of the sampling distribution of sample means with that of the population.
Your manager, who just read an abridged version of a statistics book, wants you to test hypotheses for the difference in two population means.
What quantitative method can be applied to help the Department make the decision? Outline how this method can be applied and explain how a qualitative method can also be applied to help the Department make the decision
A sample of 120 observations revealed that p = .30. At the .05 significance level, can the null hypothesis be rejected?
Create the indicated confidence interval for population mean using (a) t-distribution. (b) If you had incorrectly used normal distribution, which interval would be wider?
Rewrite in the following alternative format with left and right endpoints:Would a given mean value of 79.56 be likely, given the calculated confidence interval?
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