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Question: A survey sponsored by The American Dietetic Association and the agri-business giant ConAgra found that 53% of office workers take 30 minutes or less for lunch each day. Approximately 37% take 30 to 60 minutes, and 10% take more than an hour. ( Snapshots, usatoday.com, April 26, 2006.)
a. What additional information would you want to know before you accepted the results of the survey?
b. Discuss the four types of survey errors in the context of this survey.
c. One of the types of survey errors discussed in part (b) should have been measurement error. Explain how the root cause of measurement error in this survey could be the halo effect.
It is found that among a random sample of 130 of the school's students, 32% of them plan to go into general practice. Find the P-value for a test of the school's claim.
In Problem 15 we collected a balanced RSS of 96 subjects from the NHANES III population using a set size of k = 8 and arm circumference as the auxiliary variable to perform the judgment rankings with the goal of making inferences about the BMI for..
The scores, X, of an examination may be assumed to be normally distributed with μ = 70 and σ2 = 49. What is the probability that:
A loaf of bread is normally distributed with a mean of 22 oz and a standard deviation of 0.5 oz. What is the probability that a loaf is more than 22.25 oz?
Assume that items produced are supposed to be normally distributed with mean 35 and standard deviation 3. To monitor this process, subgroups of size 5 are sampled.
a large corporation knows that the proportion of their employees that have children is 0.67. the director of human
What is the range of each of these functions? In other words, is the image an integer, a rational number or only a real number? For which of these functions (if any) is the image of (x,y) equal to the image of (y,x)?
the joint probability mass function of x and y pxy is given byp1119p1219p130p2113p220p2316p3119p32118p3319compute exyi
Describe how to calculate the odds against an event happening when you know the probability of the event occuring. Use a numerical example to illustrate your explanation.
Calculate the correlation coefficient, coefficient of determination. Check whether there is a relation between correlation coefficient and coefficient of determination.
airlines sometimes overbook flights. suppose that for a plane with 50 seats 55 passengers have tickets. define the
The incomes of trainees at a local mill are normally distributed with a mean of $1100 and a standard deviation $150. What percentage of trainees earn less than $900 a month?
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