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The heights of north American women are normally distributed with a mean of 64 inches and a standard deviation of 2 inches.
a) What is the probability that a randomly selected woman is taller than 66 inches?
b) A random sample of four women is selected. What is the probability that the sample mean height is greater than 66 inches?
c) What is the probability that the mean height of a random sample of 100 women is greater than 66 inches?
The times needed to fall asleep are assumed to follow a normal distribution. The results for the two nights for the ten volunteers are shown below:
How would the General Counsel's decision in Part (b) change if the cost of selling the second suit were only $200,000? What if the cost were $900000?
Sample data are reported for 50 employees of small companies, 75 employees of medium companies, and 100 employees of large companies.
Explain the concepts involved in hypothesis testing, including what hypothesis testing is, and an explanation of the four types of scales used to measure data.
Students will conduct one brief research exercise that will be written up as a research report using APA style.
If circuit switching is utilized, how many user can this access link support?
Heights are sampled of kids from three schools. Using a 0.05 significance level, if when looking at ANOVA results, your p-value is 0.04, what can you say about your sample data? no minimum word count.
Generate three random observations from the uniform distribution between -10 and 40 by using the following random numbers: 0.0965,0.5692,0.6658
Using the results, describe the effect of an outlier or extreme value on the confidence interval.
The number of lightning strikes in a year at the top of a particular mountain has a Poisson distribution with a mean of 4.2. Find the probability that in a randomly selected year, the number of lightning strikes is 0.
Here are fifty observations on the weight of tea bags. Calculate the Standard Deviation and Variance.
Give the Z score for person who scores (a) 340, (b) 310, and (c) 260. Give the raw scores for persons whose Z score on this test are (d) 2.4, (e) 1.5, (f) o, and (g) -4.5
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