In a recent survey of 90 randomly selected college students, 59 said that they believe in the existence of extraterrestrial life. a) Find p, the sample proportion that believes that there is extraterrestrial life. (Round your answers to three decimal places). p = b) A recent report suggests the proportion of general US population who believe in extraterrestrial life is 0.47. Choose the appropriate null and alternative hypothesis that tests whether the prop of college students who believe in extraterrestrial life in greater than the general population? O Ho: P = 0.47 H₂: P = 0.47 O Ho: P= 0.47 H₂: p > 0.47 O Ho: P = 0.47 H₂: p > 0.47 O Ho: μ= 0.47 H₂:#0.47 O Ho: X = 0.47 H₂: x > 0.47 c) Calculate the z test statistic and p-value. (Round the test statistic to two decimal places and the p-value four decimal places). z = p-value =

College Algebra (MindTap Course List)
12th Edition
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:R. David Gustafson, Jeff Hughes
Chapter8: Sequences, Series, And Probability
Section8.7: Probability
Problem 58E: What is meant by the sample space of an experiment?
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In a recent survey of 90 randomly selected college students, 59 said that they believe in the existence of extraterrestrial life.
a) Find p, the sample proportion that believes that there is extraterrestrial life. (Round your answers to three decimal places).
=
b) A recent report suggests the proportion of general US population who believe in extraterrestrial life is 0.47. Choose the appropriate null and alternative hypothesis that tests whether the proport
of college students who believe in extraterrestrial life in greater than the general population?
O Ho: P = 0.47
H₂: P = 0.47
Ho: P = 0.47
H₂: p > 0.47
O Ho: P = 0.47
H₂: > > 0.47
Ho: μ = 0.47
H₂:μ ‡ 0.47
Ho: x = 0.47
H₂: x > 0.47
c) Calculate the z test statistic and p-value. (Round the test statistic to two decimal places and the p-value four decimal places).
Z =
p-value
d) Based on the p-value, give a conclusion in terms of the alternative.
There is no evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47.
There is suggestive, but inconclusive evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47.
There is convincing evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47.
O There is moderately suggestive evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47.
Transcribed Image Text:In a recent survey of 90 randomly selected college students, 59 said that they believe in the existence of extraterrestrial life. a) Find p, the sample proportion that believes that there is extraterrestrial life. (Round your answers to three decimal places). = b) A recent report suggests the proportion of general US population who believe in extraterrestrial life is 0.47. Choose the appropriate null and alternative hypothesis that tests whether the proport of college students who believe in extraterrestrial life in greater than the general population? O Ho: P = 0.47 H₂: P = 0.47 Ho: P = 0.47 H₂: p > 0.47 O Ho: P = 0.47 H₂: > > 0.47 Ho: μ = 0.47 H₂:μ ‡ 0.47 Ho: x = 0.47 H₂: x > 0.47 c) Calculate the z test statistic and p-value. (Round the test statistic to two decimal places and the p-value four decimal places). Z = p-value d) Based on the p-value, give a conclusion in terms of the alternative. There is no evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47. There is suggestive, but inconclusive evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47. There is convincing evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47. O There is moderately suggestive evidence that the proportion of college students who believe in extraterrestrial life is greater than 0.47.
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