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Thirty-six of the staff of 80 teachers at a local intermediate school are certified in Cardio-Pulmonary Resuscitation (CPR). In 180 days of school, about how many days can we expect that the teacher on bus duty will likely be certified in CPR?
A campus organization will select one day of the week for an end of year picnic. Assume that the weekdays, Monday through Friday, are equally likely and that each weekend day
What is the probability that a randomly-selected truck travels between 30 and 60 thousand kilometres in one year. Standard deviation of 12.0 thousand kilometres.
Now we are going to talk about continuous probability distributions. In a continuous probability distribution, the variable can have a value within a range.
State the decision rule. Compute the value of the test statistic. What is your decision regarding the null hypothesis?
Regression equation Credits=15.4-.07. Select the correct statement. Increase in number of hours worked per week increases the expected number of credits.
If it has an emergency locator, what is the probability that it will not be discovered? If it does not have an emergency locator, what is the probability that it will be discovered?
Determine the probability that she lives in an all electric home?
What is the probability that the person thinks that "Made in America" ads boost sales and uses social media online?
Researchers at a pharmaceutical company have found that the effective time duration of a safe dosage of a pain relief drug is normally distributed with mean 2 hours and standard deviation 0.3 hour.
The university police department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows Poisson distribution with a mean of 9 tickets per day.
Joe thinks that no more than 20% of students in his Statistics class will get an A in the final examination. To prove his claim, he takes a random sample of 35 students and finds to his surprise that 30% of students got an A.
A random sample of n=31 households is asked the number of TV sets in the household. The responses are-What is the mean number of TVs?
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