Estimated standard error for the sample mean
Find out the estimated standard error for the sample mean for each of the following samples:
A) n=9 with ss=1152B) n=25 with ss=2400C) n=36 with ss=1260
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Find the charge for using 202 therms in the month? Create and graph the function which gives monthly charge C for x therms of gas.
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In 1982 The US Corps of the Engineers published this information to the members of Upper Mississippi Waterways Towing Association. It took the years 1974- 1980 and represented tons of grain to Gulf by Barge. They then provided a prediction for 198
The car theft rate in City of Cleveland is displayed in column 2 for the years 1995-2001 forecast the rate for 2002, 2003 and evaluate the entire safety factor of living in Cleveland
What sample size would be required so that the width of the 99% confidence interval would be at most 0.02 units wide? Be as conservative as possible with your answer!
The National Sleep Foundation employed a survey to find out whether hours of sleeping per night are independent of the age (Newsweek, January 19, 2004). The following show the hours of sleep on weeknights for sample of individuals age 49 and young
Raindrops are falling at the constant speed vertically with respect to Earth. Traces of rain on side windows of car make the angle of 50.0° with vertical. Determine velocity of rain with respect to given reference frames.
The number of incoming phone calls at company switchboard throughout 1-minute intervals is believed to have Poisson distribution. Use a= .10 and following data to test the assumption that the incoming phone calls follow Poisson distribution.
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