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Should you use the binomial distribution? In each of the following situations, is it reasonable to use a binomial distribution for the random variable X? Give reasons for your answer in each case.
(a) In a random sample of students in a fitness study, X is the mean systolic blood pressure of the sample.
(b) A manufacturer of running shoes picks a random sample of the production of shoes each day for a detailed inspection. Today's sample of 20 pairs of shoes includes 1 pair with a defect.
(c) A nutrition study chooses an SRS of college students. They are asked whether or not they usually eat at least five servings of fruits or vegetables per day. X is the number who say that they do.
Compute the proper measure of association of smoking and lung cancer.
You were hired to do the development work for the local high school. The school has asked you to create a program to store quiz grades for the students of a class.
As a part of the feasibility study, they wish to estimate the mean weekly child-care cost of their employees. A sample of 10 employees who use child care reveals the following amounts spent last week.
Investigate the percent of babies born below your birth weight by specific term. (If you do not know this information, make a guess of your birth weight and term.)
Many studies show that noise affects cognitive functioning.- Analyze the errors with a Mann-Whitney U test and write a conclusion about the effects of noise on reading.
What is the margin of error for the survey?- Give an interval of values that probably covers the true percentage of the population that saw the UFO.
Develop the hypothesis for a 3x3 factorial design (ANOVA). The experiment revolves around the effect of music and chocolate on words remembered. The first IV is the effect of music with 3 conditions
a two-sample t test is going to be carried out where it is assumed that the population variances are unknown but
Which are the three equivalent scores that are represented by - 2Z in Figs 8.4a, b, and c?
Implement a syntactic transformation let->combination that reduces evaluating let expressions to evaluating combinations of the type shown above, and add the appropriate clause to eval to handle let expressions
Among a group of 165 students 8 are taking calculus, discrete structures, and computer science; 33 are taking calculus and computer science; 20 are taking calculus and discrete structures; 24 are taking discrete structures and computer science;
A real estate company wants to study the relationship between house sales prices and some important predictors of sales prices. Based on data from recently sold homes in the area, the variables
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