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Suppose that scores on the Math SAT exam follow a Normal distribution with mean 500 and standard deviation 100. Two students that have taken the exam are selected at random. What is the probability that the sum of their scores exceeds 1200?
Gas Station pump signs, at one chain, encourage customers to have their oil checked, claiming that one out of every four cars should have its oil topped.
Assume that you researched insurance industry statistics and found out that the probability of major accident is 0.06%, and that the probability of a fender bender is 0.15%. What is the expected value decision? Would you choose this? Why or why no..
1. thirty eight percent of young adults say they use credit cards because of the rewards program. seven young adults
a coin is tossed three times. find the probability that the coin lands on tails then heads then
Plot this 20 maxima again on normal probability paper derive the theoretical distribution function for this 20 maxima and draw the CDF in the same plot.
With a sample standard deviation of 33 miles. At the 0.05 level of significance is there a difference in the mean number of miles traveled between the two groups?
what happens when we try the option for best subsets inside minitab for my good problem question? click regression then
Find a 99% confidence interval for the true mean heart rate of all people with this untreated condition. Show your calculations.
Identify the null hypothesis, alternative hypothesis, test statistic, P-value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim.
I need to make a perfect positive linear correlation scatter diagram. Could you please outline this procedure so that I can continue to make other scatter diagrams
What is the test value? find the critical value. state what the alternative hypothesis would be H1: customer shows no preference for a specific dessert.
a brewerys filling machine is adjusted to fill bottles with a mean of 31.1 oz. of ale and a variance of 0.007.
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