Mathematics, 25.05.2021 14:00 Northshoreranch
The data shown below are simulated but are designed to reflect actual surveys conducted in the United
States in March of 2020. Participants were asked whether they perceive that they have a substantial risk of
dying if they are infected with the novel coronavirus. The number of people stating each response, stratified
on age, are shown below (only two age groups are shown):
High Risk Not High Risk
Age < 30 24 203
Age > 60 32 126
The trend in the data is that younger people perceive themselves to be at lower risk of dying than older people. But is this trend only present in this sample, or is it generalizable to a broader population (say the entire US population)? That is the goal of conducting a statistical hypothesis test in this setting. Conduct the
test using a significance level of 0.1. Also, calculate the p‐value.
Answers: 2
Mathematics, 21.06.2019 14:00
Adriveway is 60-feet long by 6-feet wide. the length and width of the driveway will each be increased by the same number of feet. the following expression represents the perimeter of the larger driveway: (x + 60) + (x + 6) + (x + 60) + (x + 6) which expression is equivalent to the expression for the perimeter of the larger driveway? a) 2(x + 66) b) 4x + 33 c) 4(x + 33) d) 4(x + 132)
Answers: 1
Mathematics, 21.06.2019 17:30
1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?
Answers: 1
Mathematics, 21.06.2019 19:50
If the scale factor between two circles is 2x/5y what is the ratio of their areas?
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The data shown below are simulated but are designed to reflect actual surveys conducted in the Unite...
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