A student survey was completed by 446 students in introductory statistics courses at a large university in the fall of 2
Posted: Sun Jul 10, 2022 10:41 am
A student survey was completed by 446 students inintroductory statistics courses at a large university in the fallof 2003. Students were asked to pick their favorite color fromblack, blue, green, orange, pink, purple, red, yellow.
(a) If colors were equally popular, what proportion of studentswould choose each color? (Round your answer to three decimalplaces.)(b) We might well suspect that the color yellow willbe less popular than others. Using software toaccess the survey data, report the sample proportion who preferredthe color yellow. (Round your answer to two decimal places.)(c) Is the proportion preferring yellow in fact lower than theproportion you calculated in (a)?
YesNo
(d) Use software to produce a 95% confidence interval for theproportion of all students who would choose yellow. (Round youranswers to two decimal places.)( , )(e) How does your confidence interval relate to the proportion youcalculated in (a)?
it is strictly above that proportionit is strictly below thatproportion it contains thatproportion
(a) If colors were equally popular, what proportion of studentswould choose each color? (Round your answer to three decimalplaces.)(b) We might well suspect that the color yellow willbe less popular than others. Using software toaccess the survey data, report the sample proportion who preferredthe color yellow. (Round your answer to two decimal places.)(c) Is the proportion preferring yellow in fact lower than theproportion you calculated in (a)?
YesNo
(d) Use software to produce a 95% confidence interval for theproportion of all students who would choose yellow. (Round youranswers to two decimal places.)( , )(e) How does your confidence interval relate to the proportion youcalculated in (a)?
it is strictly above that proportionit is strictly below thatproportion it contains thatproportion