Unformatted text preview: the following signiﬁcance level(s) should the null hypothesis be rejected? Circle all that apply.
0.005 0.01 0.025
4 0.05 0.1 Problem 10. A survey of the morning beverage market shows that the primary breakfast
beverage for 17% of Americans is milk. A milk producer in Wisconsin, where milk is
plentiful, believes the ﬁgure is higher for Wisconsin. To test this idea, she contacts a
random sample of 550 Wisconsin residents and asks which primary beverage they consumed
for breakfast that day. Suppose 115 replied that milk was their primary beverage. The
null and alternative hypotheses for her test are:
H0 : p = 0.17 and H1 : p > 0.17. (a) Which test statistic should be used to test these hypotheses? Evaluate its numerical value. All computations should be done with at least 5 decimals (5 digits
after the decimal point).
(b) Find the Pvalue.
(c) Based on the Pvalue, at which signiﬁcance level(s) should she reject the null
hypothesis? Circle all that apply.
0.3 % 0.5% 2.5% 5 3%...
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This note was uploaded on 01/11/2010 for the course MATH 218 taught by Professor Haskell during the Fall '06 term at USC.
 Fall '06
 Haskell
 Math, Probability

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