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How would I set up the following stats questions: Of the households in the U.S, 18 million or 17% have 3 or more vehicles.
a). if two U.S households are randomly selected, find the probability that both will have three or more vehicles.
If 9 measurements are randomly selected from this population, what is the probability that the sample mean will exceed 104?
Formulate and present the rationale for a hypothesis test that Par could use to compare the driving distances of the current and new golf balls.
What is the difference between qualitative and quantitative data? Provide an example of each type. What is a null and alternative hypothesis?
If this past distribution is a good indicator of future grades, what is the probability of a student receiving a C in the course?
How many hunters must be included in the survey? Assume that data gathered in earlier surveys have shown € to be approximately 10.
From a previous study, the standard deviation of the ages is known to be 3 years.
Suppose there is no cyclical component. Quarterly billing for water usage is shown below describe summer billing for year 5.
Illustrate what was the lowest score earned on the exam. Explain how many students scored within 3 standard deviations of the mean.
Illustrate what does weighting add to usefulness of moving averages and explain how is it done. The yield on a thirty year treasury note at the end of every year since 1990 is recorded below.
if a student scored 7.5 in his exam while the class mean is 8.7 and the standard deviation is 1.1 how much percent of
The time a cashier spends processing individual customer's order are independent random variables with mean 2.5 minute and standard deviation of 2.
Show that if in the Law of Large Numbers we omit the assumption that all the X have the same mean and replace the m in the conclusion by [E(X1)+...+E(Xn)]/n, the law remains valid.
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