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International food survey, part 2. Look again at the data from the Gf K Roper Worldwide survey on food attitudes in Exercise 45.
a) If we select a respondent at random, what's the probability we choose a person between 13 and 19 years old who agreed with the statement?
b) Among the 13- to 19-year-olds, what is the probability that a person responded "Agree"?
c) What's the probability that a person who agreed was between 13 and 19?
d) If the person responded "Disagree," what is the probability that they are at least 50 years old?
e) What's the probability that a person 50 years or older disagreed?
f) Are response to the question and age independent?
A researcher wants to create a 99% confidence interval for the population mean. He has a sample of n=120, an x-bar of $340, and a sample standard deviation of $122. What is the margin of error?
questionthe following artificial data record the length of stay in days spent on a psychiatric ward for 28
One objective of this course is learning how to correctly interpret statistical measures.
The following data shows the sample size and the average age of cars for import and domestic cars along with the population standard deviations.
a survey was conducted to learn more abou clarkston university. one part of the survey asked respondentd to indicate
Construct confidence intervals for the estimates of the slope coefficients in (i) to (iii) of Question 3. Explain the meaning of these confidence intervals and comment on your results about the width of the confidence intervals, if sample size inc..
a resent report indicated an average family of four 2 parents and 2 children under the age of 16 spends 500 per month
Insurance companies collect annual payments from homeowners in exchange for paying to re- build houses that burn down.
For the binomial sample information summarized below, indicate whether the sample size is large enough to use the large sample approximation to construct a confidence interval for p.
Suppose a company owns three cars that get 20 miles per gallon, two cars that get 22 miles per gallon and one car that gets 24 miles per gallon. Would the mean miles per gallon be 22?
Compute the skewness for your data set using Pearson's
How many seizures per week would you predict for a person who has been at the hospital for ten weeks - There is a perfect positive relationship between the number of weeks spent in a hospital and the number of seizures recorded.
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