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For each of the following situations reported in the news, specify what variable(s) were measured on each individual and whether they are best described as categorical, ordinal, or quantitative.
a. A Los Angeles Times survey found that 60% of the 1515 adult Californians polled supported a recent state law banning smoking in bars (Sacramento Bee, May 28, 1998, p. A3).
b. According to the College Board News (December 1998, p. 1), "Students using either one of two major coaching programs [for the SAT] were likely to experience an average gain of 5 to 19 points on verbal and 5 to 38 points on math."
The average age in the sample was 22.5 years with a standard deviation of 5 years. Construct a 95% confidence level. What is the probability that the sample mean will be more than $306.60?
Jerry however is unsure the 0.6 probability of a favorable marketing research study is correct. How sensitive is Jerry's decision to this probability value ? How far can this probability value deviate from 0.6 without causing Jerry to change his d..
Find a 95% confidence interval for the difference between this year and last year in the mean number of units sold at all retail stores and interpret the results.
for the same sample data and null hypothesis how does the p-value for a two-tailed test of mu compare to that for a
the use of a tremendously large sample does not solve the question of quality for an estimator. what problems do you
Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = .10 by first calculating a P-value.
What proportion of children 10 to 15 would be classified as hyperlipidemic (assume that hyperlipidemia is defined as a total cholesterol lelvel of 200)?
Find the probability that the first marble drawn was blue given that the second marble drawn was red and what is the range space RY of this new random variable Y and give the probability distribution of Y in tabular form
A new product has the following profit projections, associated probabilities, and indifference probability:
Write an essay in a 1- to 2-page Microsoft Word document defining a population that you would like to study during this course.
Come up with a survey: Pick a population. Come up with 4 variablesà 2 Quantitative & 2 Qualitative (make up numbers)
With your health topic and data set in mind, and the instructor feedback you received on your proposed methods, conduct the appropriate statistical analyses using SPSS and review the output obtained. Reflect on the significance of the results. Be ..
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