Mathematics, 06.05.2020 04:03 deondra0803
According to the Centers for Disease Control and Prevention, the proportion of U. S. adults age 25 or older who smoke is .22. A researcher suspects that the rate is lower among U. S. adults 25 or older who have a bachelor's degree or higher education level. What is the null hypothesis in this case?
a. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is less than 0.22.
b. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is 0.22.
c. The proportion of smokers among U. S. adults 25 or older who have a bachelor's degree or higher is not 0.22.
d. There is no relationship between education level and smoking habits.
Answers: 2
Mathematics, 21.06.2019 19:30
If 2(a^2+b^2)=(a+b)^2 then, > a+b=0, > ab=0, > a=b, > 2a=b
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Amayoral candidate would like to know her residentsβ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample
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Mathematics, 22.06.2019 03:50
One x-intercept for a parabola is at the point (1,0). use the factor method to find x-intercept for the parabola defined by the equation y=-3x^2+5x+2
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According to the Centers for Disease Control and Prevention, the proportion of U. S. adults age 25 o...
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