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The goal is to estimate the average length of the N strings in the bag the instructor is holdling. The sampling will be done by two different methods, both involving randomization.
1. Selection by touch
a. Without looking into the bag reach into it and select a string. Record its length (to the nearest inch) and return the string to the bag. Repeat this process until 10 strings have been sampled.
b. Calculate the average of your sampled string lengths.
c. Report your average to the instructor, who will provide you with all the aver, ages recorded in the class.
suppose a random variable t has cdf ft and assume ft is continuous. what is the cdf of
The article from which the data in Exercise 20 was obtained also gave the accompanying data on the composite mass/outer fabric mass ratio for high-quality fabric specimens
what are lurking variables that could be having an effect on the negative linear relationship between car year and car
The famous Y.S Chang Restaurant is open 24 hours a day. Waiters and busboys report for duty at 3 am, 7 am, 11am, 3pm, 7pm or 11pm, and each works an 8-hour shift. The following table shows the minimum number of worker needed during the six periods..
1. according to the yankee group 53 of all cable households rate cable companies as good or excellent in quality
you have obtained the number of years of education from one random sample of 38 police officers from city a and the
Assume the population standard deviation (s) is 0.5 and the sample size (n) is 100. Calculate the values for alpha, a type I error and beta, a type II error. (To calculate Beta, consider a mean that is 1 standard error away from the lower end valu..
True or false and explain: because the sons average an inch taller than the fathers, if the father is 72 inches tall, it's 50-50 whether the son is taller than 73 inches. Find the regression line of son's height on father's height, and its RMS erro..
If the z score is less than 0, what can be said of the corresponding raw score?
a study was conducted by enron research to test for a difference inthe mean number of critical care patients in rooms
Develop a regression model that could be used to predict the final average in the course based on the first test grade. Predict the final average of a student who made an 83 on the first grade.
Suppose the annual consumption of chicken mean is 20.84 pounds per person, and that the standard deviation for the consumption of chicken per person is 9.193 pounds.
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