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how to interpret LSD post hoc table
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1. In a study 40% of adults questioned reported that their health was excellent. A researcher wishes to study the health of people living close to a nuclear power plant. Among 10 adults randomly selected from this area, only 3 reported that their health was excellent. Find the probability that...
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Resolved QuestionShow me another Statistics question on probability? According to a nationwide survey, 60% of parents with young children condone spanking their child as a regular form of punishment. (Tampa Tribune, Oct. 5, 2000.) consider a random sample of three people, each of whom is a...
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uniform distribution over the interval 6.8 to 8.5 millimeters, what is the probability a random select is 7.4 millimeters?
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Twenty-five percent of the > > employees of a large hospital are minorities. A random sample of 7 > > employees is selected. > > > > > > > > A. What is the probability that the sample contains exactly 4...
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Scores on a test are normally distributed with a mean of 61 and a standard deviation of 10.2 Find which separates the bottom 81% from the top 19%
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"6. A recent national survey of hospital admissions for people between 25 and 50 years who had hospital admissions in during a two years period showed that 30% had 1 admission only, 25% had two admissions, 15% had 3 admissions, 12% had 4 admissions, 8 % had 5 admissions, 10% had 6...
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You asked: "7. Use the following results obtained from a simple linear regression analysis with 12 observations. Y'=37.2895-(1.2024)X r2=.6744 sb(1)=.2934 Test to determine if there is a significant negative relationship between the independent and dependent variable at...
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) A company wants to test the hypothesis that its new miracle weight loss pill is effective. A group of 25 subjects are randomly divided into two groups. One group is given a placebo and the other is given the weight loss pill. After one month, weight loss for each individual is measured....
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You asked: "8. A local tire dealer wants to predict the number of tires sold each month. He believes that the number of tires sold is a linear function of the amount of money invested in advertising. He randomly selects 6 months of data consisting of tire sales (in thousands of tires)...
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- 1. A school administrator wonders if students whose first language is not English score differently on the math portion of the sat exam than students whose first language is English. The mean SAT math score of students whose first language is english is 516 on the basis of data obtained from the college board. A simple random sample of 20 students whose first language is not English result in a sample mean SAT math score of 522. SAT math score are normally distributed with a population standard deviation of 114. Why is it necessary for SAT math scores to be normally distributed to test the hypothesis?
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