The government of a large city needs to determine whether the city's residents will support the construction of a new gymnasium. The government decides to conduct a survey of a sample of the city's residents. Which one of the following procedures would be the most appropriate for obtaining a sample of the city's residents?

a) Survey a random sample of the employees and inmates at the old jail.
b) Survey every fifth person who talks into the City Hall on a given day.
c) Survey a random sample of persons within each geographic region of the city.
d) Survey the first 200 people listed in the city's telephone directory.

The null and alternate hypotheses are: h0: μ1 ≤ μ2 h1: μ1 > μ2 a random sample of 22 items from the first population showed a mean of 113 and a standard deviation of 12. a sample of 16 items for the second population showed a mean of 99 and a standard deviation of 6. use the 0.01 significant level. find the degrees of freedom for unequal variance test. (round down your answer to the nearest whole number.) state the decision rule for 0.010 significance level. (round your answer to 3 decimal places.) compute the value of the test statistic. (round your answer to 3 decimal places.) what is your decision regarding the null hypothesis? use the 0.01 significance level.