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Make up a scatter diagram with 10 dots for each of the following situations: (a) perfect positive linear correlation, (b) large but not perfect positive linear correlation, (c) small positive linear correlation, (d) large but not perfect negative linear correlation, (e) no correlation, (f) clear curvilinear correlation.
Can you envision circumstances under which these outcomes would not be normally distributed? Provide three distinct examples of the business outcomes that are not normally distributed.
Please state the null and alternative hypothesis in symbols and in words. Compare the P-value to the Level of Significance. Do you accept or reject Ho.
Construct three scatter plots for: (1) percentage alcohol versus calories, (2) percentage alcohol verses carbobydrates, and (3) calories versus carbohydrates
A United Nations report shows the mean family income for Mexican migrants to the United States is $27,000 per year. A FLOC(Farm Labor Organizating Committee) evaluation of 25 Mexican family units reveals a mean to be $30,000 with a sample standard..
What sample size must be taken to estimate the average gas price in houston with 99% confidence and max error of 5 cents? Assume population standard deviation of gas prices is 60 cents.
To estimate the average time it takes to assemble a certain computer component, the industrial engineer at an electronic firm timed 40 technicians in the performance of this task, getting a mean of 12.73 minutes and a standard deviation of 2.06 mi..
The management of a chain of fast food restaurants wants to investigate the relationship between the daily sales volume (in dollars) of a company restaurant and the number of competitor restaurants within a 1 mile radius. The following data have b..
A manufacturer of executive jet aircraft is concerned with its profit picture over the short run. It produces two different models of planes, x1 and x2. Its profits are $30,000 for each x1 and $20,000 for each x2. There are two major constraints o..
The goal at U.S. airports handling international flights is to clear these flights within 45 minutes. Let's interpret this to mean that 95 percent of the flights are cleared in 45 minutes
Suppose a one tailed t test is being applied to find out if the population mean is less than $120. The level of significance selected is 0.01 and 26 bank accounts were sampled.
Compare the mean of the sampling distribution of sample means with that of the population.
A prof. can't decide how to vote on a tuition increase for the students at her univ. The incrase is supposed to pay for new student parking and there appears to be mixed feelings. The prof.
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