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Which brand of chocolate chip cookies gives you the most chips per cookie? For the purpose of this question, take as you population of interest all the chocolate chip cookies available at a single HEB location.
a) Explain why it would be hard to take a Simple Random Sample?
b) Describe how to take a cluster sample of chocolate chip cookies.
Discuss possible study designs. Which of the designs would we use to test our research hypothesis?
The average number of days absent per student per year at West Valley School is 17 days with a standard deviation of 4 days. How many standard deviations from the mean is 6 absent days?
Consider following data on exam scores of 10 randomly selected students: Compute 3rd quartile of the exam scores.
You listen to radio station for 1 hour, at arbitrarily selected time, and carefully observe that amount of advertising time is equal to 7 minutes. Compute z-score for this amount of advertising time.
From the course text and research I am able to create a frequency band with a single number (ie. 10, 20, 30, etc.). However, I am having difficulty creating the band with a number range (ie. $0-$999,999 or $1,000,000-$5,000,000).
Last week Sarah had exams in Math and in Spanish. On the Math exam, the mean was u, = 30 with a = 5, and Sarah had a score of X - 45. On the Spanish exam, the mean was u, = 60 with 0 = 6 and Sarah had a score of X = 65. For which class must Sarah ..
Which of the following is the appropriate conclusion from carrying out these multiple comparisons
Student A and B took different statistics classes and 2 different finals. Student A had a score of 83 out of 100 and ranked 72 in his class. Student b scored 85 out of 100 and he ranked in the 70 percentile of his class.
Evaluate true mean delivery time to within 5 minutes at 90% reliability level? Suppose that standard deviation for delivery times is 18.2 minutes.
It costs ABC $0.5 per pound to ship the box containing the weights. Because it's an odd-shaped package, though, shipping the bar costs $0.6 per pound plus a $10 surcharge. Find the mean and standard deviation of the company's total cost for shippi..
A nutritionist conducted an experiment on memory for dreams. She wanted to test whether it really was true that eating cheese before going to bed made you have bad dreams. Over three nights, the nutritionist fed people different foods before bed.
Determine the cost Xs to develop the support system for which the probability of exceeding Xs is equal to 0.01?
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