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Population Prediction
The 2009 World Almanac and Book of Facts predicted that the United States will have an elderly population (65 and older) of 88,547,000 in the year 2050 and that this will be 20.2% of the population.
What is the total predicted U.S. population in 2050?
CE 26400 Data Analysis - Fall 2016 - Explore the National Water Information System (http://waterdata.usgs.gov/nwis) to find dis- charge gauges across the United States with long time series record
A microwave manufacturing company has just switched to a new automated production system. Unfortunately, the new machinery has been frequently failing and requiring repairs and service. The company has been able to provide its customers with a ..
Construct and show a scatterplot of the data. Does it show a positive correlation, negative correlation or no correlation?Find the value of the linear correlation coefficient r.Based on the critical value and the correlation coefficient, is there s..
Normal distribution on the population to estimate the value of the mean spending per day - estimate for the mean amount spent per day by a family of four visiting Niagara Falls.
A box contains 40 envelopes of which 25 are ordinary and 15 are unstamped. The number of unstamped ordinary envelopes is 10. What is the probability that an envelope chosen at random from the box is a stamped non ordinary envelope ?
Determine the z score and the area.
question 1a busy landscaping supplies company sells wood chips for garden mulch. the mulch is sold by the cubic metre
Examine whether the laboratories are consistent in their measurements of the differ-ences in the amounts of niacin. Examine the validity of the assumptions made in your analysis
Acme Manufacturing Company requires all of its 5000 employees to take a drug test. Suppose 2% of the employees actually use drugs (although the company does not know this number). The drug test is 95% accurate.
Identify the data collection methods used in that research and analyze that data, evaluate its validity, and then draw conclusions from it in the form of a summary.
The random var x has a normal distribution with population mean (u) of 40 and a population variance (q^2) of 36. Find the value of x. Call it x0, such that... A) P (X >= x0) = 0.10 B) P(X =x0) = 0.40
A survey by an electric company contains questions on the given:- Describe the variables implicit in these 11 items as quantitative or qualitative, and describe the scales of measurement
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