Mathematics, 18.02.2020 00:30 lindsaypre0644
"Office occupancy in a city is an indication of the economic health of the region in which it is located. Suppose a random sample of offices in Boston and Chicago was selected and the number of vacancies was recorded. Round all answers to four decimal places."
City Vacant Not Vacant Total
Boston 25 138 163
Chicago 15 122 137
Total 40 260 300
Our research question is, "Is there a difference in the vacancy rates for these two cities?"
1. What are the hypotheses for testing whether there is a significant difference?
Answers: 3
Mathematics, 21.06.2019 22:50
Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?
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Mathematics, 22.06.2019 02:10
Of jk j(β25, 10) k(5, β20). is y- of l, jk a 7: 3 ? β16 β11 β4 β1
Answers: 1
Mathematics, 22.06.2019 03:00
Dana wants to identify the favorite professional baseball team of people in her community. she stands outside a local sporting goods store and asks every other person who enters, "what is your favorite professional baseball team? " will the results of her survey be valid? explain.
Answers: 1
"Office occupancy in a city is an indication of the economic health of the region in which it is loc...
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