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1.H 0 : p 0.80 2. H 0 : p = 0.80 H A : p > 0.80 3. H 0 : p > 0.80 H A : p = 0.80 4. H 0 : p = 0.80 H A : p < 0.80 5. H 0 : p = 0.80 H A : p > 0.80 6.H 0 : p 0.80 A statistics professor wants to see if more than 80% of her students enjoyed taking her class. At the end of the term, she takes a random sample of students from her large class and asks, in an anonymous survey, if the students enjoyed taking her class. Which set of hypotheses should she test? Countdown 10

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After collecting data from her class, the statistics professor calculates a z statistic of 2.69 for the hypothesis test H 0 : p = 0.80 H A : p > 0.80. Which of the following is true? 1.The P-value is.9964 and conclude that more than 80% of the students enjoyed her class. 2. The P-value is.0036 and conclude that more than 80% of the students enjoyed her class. 3. The P-value is.9964 and conclude that less than 80% of the students enjoyed her class. 4. The P-value is.0036 and conclude that less than 80% of the students enjoyed her class. Countdown 10

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Determine the test statistic z 0 for the following situation: H 0 : p = 0.23 versus H A : p ≠ 0.23; n = 200; x = 52 1.z = 0.97 2. z = 1.01 3. z = 0.51 4. z = –1.01 Countdown 10

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