Mathematics, 12.08.2020 05:01 jellybean6487

In October 1947, the Gallup organization surveyed 1100 adult Americans and asked, "Are you a total abstainer from, or do you on occasion consume, alcoholic beverages?" Of the 1100 adult s surveyed, 407 indicated that they were total abstainers. In a recent survey, the same question was asked of 1100 adult Americans and 333 indicated that they were total abstainers. Required:
Has the proportion of adult Americans who totally abstain from alcohol changed? Use the α=0.05 level of significance.

Answers: 3

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 13:00, Ancelingabaut

How can we find the measure of an exterior angle if we know the measurement of an interior angle

Answers: 2

continue

Mathematics, 21.06.2019 20:00, alondrahernande3

Which sums are equal to 1hold 6/8? choose all answers that are correcta.1/8+6/8b.12/8+2/8c.8/8+1/8 +1/8+1/8+1/8+1/8+1/8d.8/8+6/8

Answers: 1

continue

Mathematics, 21.06.2019 20:30, strodersage

Ametal rod is 2/5 meters long. it will be cut into pieces that are each 1/30 meters long. how many pieces will be made from the rod?

Answers: 1

continue

Mathematics, 21.06.2019 22:00, zurfluhe

Manuela claims that and are congruent. which statement best describes her claim? she is incorrect because the segments do not have the same orientation. she is incorrect because the segments do not have the same length. she is correct because the segments have the same length. she is correct because the segments have the same orientation.

Answers: 1

continue

You know the right answer?

In October 1947, the Gallup organization surveyed 1100 adult Americans and asked, "Are you a total a...