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During a 36 year period, lightening killed 2768 people in the US. Assume that this rate holds true today and is constant throughout the year. Find the probability that tomorrow
a) no one in the US will be struck and killed by lighteningb) one person will be struck and killedc) more than one person will be struck and killed
Estimate the average score at age 35 for all the individuals who scored 115 at age 18. Predict the score at age 35 for an individual who scored 115 at age 18.
Probability the second truck is available is .50, and the probability that both trucks are available is .30. What is the probability neither truck is available?
A company will promote two employees out of a group of six men and three women, what would you say the chances of this experiment if there is particular concern about gender equity and which concept of probability would you use to estimate these p..
Suppose that the actual mean value in the population is mu =120 , what is the probability of a Type II error (incorrectly accepting a false null hypothesis)?
In the survey of 8000 women, 5431 say they change their nail polish once the week. Create the 99% confidence interval for population proportion of women who change their nail polish once a week.
A presidential candidate's aide estimates that, among all college students, the proportion p who intend to vote in the upcoming election is at least 70%.
Body mass index is measured as the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI.
A University Web server has five main components each with the same reliability. All five components must work for the server to function as intended.
An economic researcher would like to know whether he can reject the null hypothesis at the 0.10 level, that no more than 20% of the households in Pennsylvania make more than $70,000 per year.
The entire shipment is accepted if only one or non of the tablets is defective. If the defect rate is 5% then what is the probability that the shipment will be accepted?
What percentage of the variation in y can be explained by the corresponding variation in x and the least-squares line? What percentage is unexplained?
Finding the probability of sample and describe the sampling distribution of the sample means.
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