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1. A nutritionist has noticed a FoodFarm ad stat- ing the company's peanut butter contains less fat than that produced by a major competitor. She purchases 11 8-ounce jars of each brand and measures the fat content of each. The 11 FoodFarm jars had an aver- age of 31.3 grams of fat, with a standard deviation of 2.1 grams. The 11 jars from the other company had an average of 33.2 grams of fat, with a standard deviation of 1.8 grams. Assuming normal populations with equal standard deviations, use the 0.05 level of significance in examining whether FoodFarm's ad claim could be valid. What is the most accurate statement that could be made about the p-value for this test?
2. A study published in the Archives of Internal Medicine examined the prevalence of so-called "difficult" patients who ask for unneeded prescriptions, unnecessarily complain, or otherwise cause extraordinary frustrations for their medical provider. Researchers found the mean age of doctors having the greatest problems with difficult patients was 41, while the mean age of doctors having the least problems with difficult patients was 46. Assume that data file XR11012 contains the ages for doctors in each of these patient-difficulty samples. In a suitable one-tail test at the 0.01 level, was the mean age for doctors having the greatest problems with difficult patients significantly less than that for those having the least problems with difficult patients? Identify and interpret the p-value for the test.
Source: Rita Rubin, "‘Difficult Patients Can Test Doctors' Patience," USA Today, February 24, 2009, p. 5D.
Currently, the company is ordering 500 units each time an order is placed. What is the total holding cost for the year using this policy?
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.
B is independent of C or not? Focus on probabilities assigned in the subsets, 0.05 is repeated in C, but 0.10 is repeated in B, so P(A∩C)=?
Roger has read a report that the weights of adult mail Siberian tigers have a distribution which is approximately normal with mean μ = 390 lb and σ = 65 lb.
jean researcher is studying the percentage of ethanol in dwi arresteess blood. she tests 16 subjects and finds a mean
Each party's position must be statistically sound. Include as suitable graphs, computations, and statistical tests.
What is the mean number among 12 truthful persons who will be classied as deceptive? What is the standard deviation of this number?
Based on a survey of over 10,000 households, the number of televisions in the home was recorded as given in the table below. Based on the data, find the expected number of televisions in a home.
Although the line for A1 is crooked, the points on the line are consistently 5 points higher than the line for A2. What result is indicated by this pattern?
3 of 20 students are selected to a committee. they will be president vice president and secretary. how many different
Study on Comparison of LSAT and SAT Verbal
Your response must not exceed 1500 words excluding bibliography, index and cover page. Edit your paper for grammar and sentence structure before submission. Font size and style is not relevant.
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