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During the pas year, the daily price of gasoline per gallon at four local gas stations has been approximately normally distributed. The four gas stations' yearly data and current selling prices are listed.
Station. Mean Price. Standard Deviation of price. Current Price
Elm St. 4.45. 0.08. 4.64
Third Am. 4.53. 0.11. 4.67
Devon Dr. 4.56. 0.12. 4.65
Morton LN. 4.49. 0.13. 4.62
A citizen's advocate accuses one of the stations of current price gouging (charging an unreasonably high price). Based on current selling prices, which station appears to be price gouging, relative to its annual mean price?
the function fx0 for xlt0 14x6 for 0ltxlt2 1 for xgt2 is the distribution function of a mixed random variable x.
Braking distances of cars. A random sample of 13 four-cylinder cars is obtained and braking distances are measured and found to have a mean of 137.5 ft. and a standard deviation of 5.8 ft.
Alcohol abuse. Growing concern about binge drinking among college students has prompted one large state university to conduct a survey to assess the size.
A particular product is manufactured in two facilities, A and B. Facility B is more modern and accounts for 70% of the total production.
Interpret the coefficients for MTenure and CTenure in model 1. Which of the two variables contributes more to profits (i.e. which one has a greater $ impact)
Write the general form of a regression equation that has a single predictor variable. Identify the criterion variable, the predictor variable, the regression constant, and the regression coefficient.
The Acme School of Locksmithing has been accredited for the past 15 years. Discuss how this information might be interpreted as a qualitative variable.
A logistic regression model was used to assess the association between CVD and obesity. P is defined to be the probability that the people have CVD.
They calculated that would cost $120,000 to rebuild that home. Use expected values to determine annual insurance premium.
Medical research team studied the ages of patient who had strokes caused by stress. Ages of 34 patients who suffered stress strokes. Create frequency distribution for these ages.
in an emergency the typical driver requires about 0.75 seconds to get his or her foot onto the brake. the distance that
Determine the expected value and standard error of the sum of 400 draws?
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