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Assume that cans of Coke are filled so that the actual amounts have a mean of 12.00 oz and a stand. dev. of 0.11 oz
a) Find the P that a sample of 36 cans will have a mean amount of at least 12.19 oz.
b) Based on the result from part a, is it reasonable to believe the cans are actually filled with a mean of 12.00 oz? if the mean is not 12.00oz, are consumers being cheated?
Car Emissions: Listed below are measured amounts of greenhouse gas emissions from cars in three different categories. The measurements are in tons per year, expressed as CO2 equivalents.
Compute the z score corresponding to each of the following values of x. Compute the z score corresponding to each of the following values of x
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Find the indicated probability using the geometric or Poisson distribution. A newspaper finds that the mean number of typographical errors per page is nine.
The grades of a sample of 5 students, selected from a large population, are given below. Determine a point estimate for the variance of the population.
You are using a significance level of α = 0.05 to test a claim that p > 0.5. Your sample is a simple random sample of size n = 49. Calculate β for the test, assuming that the true population proportion is 0.7 and showing all work.
For the past 20 years, the high temperature on April 15th has averaged (j = 62 degrees with a standard deviation of a = 8. Last year, the high temperature was 66 degrees.
Each year approximately 160 colleges compete in national concrete canoe competion. Each team should design a seaworthy canoe from a substance not known for its capacity to float. T
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An internet company has redesigned its website to improve the online experience of its customers. To test whether the new design has improved its customers' experience it has asked people to comment on whether they prefer the new format or not.
Is there a difference in the extent of wound healing by treatment? (Hint: Are treatment and the percent wound healing independent?) Run the appropriate test at a 5% level of significance.
A shipment of 150 television sets contains three defective units. In how many ways can a vending company buy three of these units and receive (a) no defective units, (b) one defective unit, and (c) at least two good units?
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