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Response is Sales P r o m o t i o n Q a u P l a r l i e i Mallows c x t Vars R-Sq R-Sq(adj) Cp S e p y 1 81.3 79.8 6.1 7.8239 X 1 58.0 54.5 26.2 11.734 X 1 9.5 2.0 68.1 17.221 X 2 85.7 83.0 4.4 7.1630 X X 2 82.9 79.8 6.8 7.8193 X X 2 69.2 63.6 18.6 10.499 X X 3 88.4 84.9 4.0 6.7523 X X X A) Excluding the combination that includes all the variables, which variables would you consider to include into the model based on Mallows Cp criterion? B) If you want to consider a regression model with just one independent variable, which one would you include according to R-Sq(adj) criterion?
Assume that the number of calories in a McDonald's Egg McMuffin is a normally distributed random variable with a mean of 290 calories and a standard deviation of 14 calories. What is the probability that a particular serving contains fewer than 300..
Develop four probability questions using the table that you as an instructor of statistics might ask a class of students for a test in probability.
How to determine the probability that a randomly selected player bats over 0.300? How to determine the probability that a team of 25 players will have a mean above 0.275?
Can the company conclude that the pill is effective at promoting weight loss? Write the hypotheses and conduct the appropriate hypothesis test.
random sample of 120 households, what is the probability that greater than 20 households but less than 35 households receive retirement income?
What is the 95% confidence interval for the proportion of the population of employees who strongly dislike their current work experience?
File a claim is 0.0005. Suppose they wrote 400 policies for the coming weekend, what is the probability that exactly two claims will be filed?
Copying times average 8 minutes according to an exponential distribution. What are the operating characteristics for this system?
The share of the national car manufcturers market in South Africa is shown in the table below:
Then, define probability value in your own words and explain how a probability value of .05 in this example is related to the normal curve.
For each of the F statistics given above find the degrees of freedom and an approximate P-value. Summarize the results of these tests.
A person purchased a slot machine and tested it by playing it 1,245 times. There are 10 different categories of outcomes, including no win, win jackpot, win with three balls, and so on.
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