Televisions: CI (Example 14) Minitab output is shown for a two-sample t -interval for the number of televisions owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. a. Are the conditions for using a confidence interval for the difference between two means met? b. State the interval in a clear and correct sentence. c. Does the interval capture 0? Explain what that shows.
Televisions: CI (Example 14) Minitab output is shown for a two-sample t -interval for the number of televisions owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. a. Are the conditions for using a confidence interval for the difference between two means met? b. State the interval in a clear and correct sentence. c. Does the interval capture 0? Explain what that shows.
Solution Summary: The author explains how the Minitab output shows the confidence interval of the difference between the mean number of televisions owned by the wealthy community and the other community households.
Televisions: CI (Example 14) Minitab output is shown for a two-sample
t
-interval
for the number of televisions owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community.
a. Are the conditions for using a confidence interval for the difference between two means met?
b. State the interval in a clear and correct sentence.
c. Does the interval capture 0? Explain what that shows.
Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.
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What is the standard scores associated to the left of z is 0.1446
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