55% of the males in our Spring 2016 Stats class out of a sample of 161...

55% of the males in our Spring 2016 Stats class out of a sample of 161 males are from South Dakota. 52% of the females out of a sample of 157 are from South Dakota. Assume that the two samples were independent and representative samples. Construct and interpret a 99% large sample confidence interval for the difference in the proportion of males compared to females in our Stats class who are from South Dakota. Can we conclude that there is a significant difference in the proportion of males from females that are from South Dakota at the 99% level? Be sure to check the sample size first.

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orchestra answered 1 year ago

5. A clinician notices in her sample that 28 out of 80 males are obese, compared...

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According to a survey, out of the 297 people in our class, 71 have senior standing...

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According to CalCentral, out of the 297 people in our Stat 2 class, 71 have senior...

According to CalCentral, out of the 297 people in our Stat 2 class, 71 have senior standing (7 or more semesters at UCB), and 226 do not. Among those with senior standing, 53 have declared a major and 18 have not. Among those without senior standing, 69 have declared a major and 157 have not. Suppose we are going to choose a single student at random from the class.    (a) Are the events “drawing someone with senior standing” and “drawing...

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55% of the males in our Spring 2016 Stats class out of a sample of 161...

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5. A clinician notices in her sample that 28 out of 80 males are obese, compared...

According to a survey, out of the 297 people in our class, 71 have senior standing...

According to CalCentral, out of the 297 people in our Stat 2 class, 71 have senior...