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The pulse rates for 13 adult women were as follows. Construct a 0.95 confidence interval for the mean pulse rate. (Give your answers correct to one decimal place.)
81 76 103 77 89 70 90 92 95 69 59 78 71
Lower limit :
Upper limit:
A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be taken what is the probability that the sample mean will be greater than 57.95?
Explain what these terms mean in describing the distribution of the sales reps' salaries.
Identify the population parameter of interest in the survey. Give a point estimate of the population parameter. Set up H0 and Ha for testing whether the true percentage of TV viewers who find cable news to be better quality than network news differs..
The mean of a normal probability distribution is 60; the standard deviation is 5.
Carry your intermediate computations to at least three decimal places. Round your answers to one decimal place. What is the lower and upper limit of the 90% CI?
What would be the critical value under the null hypothesis if the size of your test were 5%?
an average of 15 aircraft accidents occur each year.a. compute the mean number of aircraft accidents per month.b.
Assume H- to be true. What is the probability that this decision strategy will result in a type I error. Sketch the sampling distribution and put in the region of rejection?
Determine expectation of number of vehicles passing through this specified point in ten minutes.
Workers in 2 different mine groups were asked what they considered to be the most important labour-management problem. In Group A,
If two people are randomly selected, what is the probability both are hopelessly romantic? What is the probability at least one is hopelessly romantic.
Equally likely chances of (1) increasing in value, (2) decreasing in value, or (3) remaining the same value. Calculate the probability at least one of the stocks increase in value.
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