A college official conducted a survey to estimate the propor

A college official conducted a survey to estimate the proportion of students currently living in dormitories about their preference for single rooms, double rooms, or multiple more than two people) rooms in the dormitories on campus. Which of the following does NOT affect the college official\'s ability to generalize the survey results to all dormitory students The number of people living on American farms has declined steadily during the last century. Data gathered on the U.S. farm population (millions of people) from 1910 to 2000 were used to generate the following regression equation: Predicted Farm Population = 1167 - .59 (YEAR). Which method is best to use to predict the number of people living on farms in 2050? The following situation models the logic of a hypothesis test. An electrician uses an instrument to test whether or not an electrical circuit is defective. The instrument sometimes fails to detect that a circuit is good and working. The null hypothesis is that [he circuit is good (not defective). The alternative hypothesis is that the circuit is not good (defective). If the electrician rejects the null hypothesis, which of the following statements is true?

Solution

1) five thousand students live in dormitories and a random sample of 500 were sent the survey would not affect the generalization of the result. (As we generally take a random sample to generalize the results)

Hence correct choice is option A.

2) To predict the number of people living in farms in 2050 we plug 2050 for year in the given equation and complete the calculation.

Hence correct choice is option A.

3) Elctrician rejects null hypotheses that means there are sufficient evidence to support the claim that the device is defective. But it could be good as well. Using a instrument elctrician decides that device is defective since instrument is not 100% correct it might be good as well.

Hence correct choice is option B.