Mathematics, 28.12.2019 11:31 xmanavongrove55
Atriangular pyramid is cut by a plane. in which case is the cross section a quadrilateral?
a: when the plane is perpendicular to the base and passes through the apex
b: when the plane is parallel to the base of the pyramid
c: when the plane intersects the base and two lateral faces of the pyramid
d: when the plane intersects the base and all three lateral faces of the pyramid
Answers: 3
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According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
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Atriangular pyramid is cut by a plane. in which case is the cross section a quadrilateral?
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