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A researcher with Ministry of Transportation is commissioned to study the drive times to work (one-way) for U.S. cities. The underlying hypothesis is that average commute times are different across cities. To test the hypothesis, the researcher randomly selects six people from each of the four cities and records their one-way commute times to work. Refer to the below data on one-way commute time (in minutes) to work. Note that the grand mean is 36.625.
Which of the following is the sum of squares due to treatments?
rev: 08_29_2014_QC_52850
5,285.83 13,281.79 18,567.63 4,427.26
If possible, use a computer-based multiattribute decision program to do this problem.
three machines i ii and iii manufacture 30 30 and 40 respectively of the total output of certain items. of them 43 and
A hypothesis states a difference exists between two populations. Sometimes this is an obvious conclusion because the means will be very different.
a machine dispenses water into a glass. assuming that the amount of water dispensed follows a continuous uniform
Exercise 8 The table below gives data on moisture content for specimens of a certain type of fabric. Determine control limits for a chart with center line at height 13.00 based on σ = .600, construct the control chart, and comment on its appearanc..
a project was planned using pert with three times estimates. the expected completion time of the project was determined
1*. Suppose that Xi....,Xn is a random sample of size n on X, where X has pdf f(x, = -92 X3e-2218, X> 0, and 0 is a positive parameter.
suppose that y is a discrete random variable with mean u and variance o2 and let xy1a. do you expect the mean of x to
HIV found that 3 received a false positive test result. Test the researcher's claim of a 2% false positive rate at the a = 0.05 level. What can you conclude?
The Welcher Adult Intelligence Test Scale is composed of a number of subtests. On one subtest, the raw scores have a mean of 35 and a standard deviation of 6. Assuming these raw scores form a normal distribution.
A sample of 20 endangered species was obtained and the length of time (in months) since being placed on the list was recorded for each species. A stemplot of these data follows. In the stemplot, 5|2 represents 52 months.
Then describe trade-offs which will happen when you lower sample to $10,000 to meet their budget.
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