(c)Compute the test value. Round the answer to at least two decimal places. z= (d)Make the decision. (choose one) the null hypothesis (e)Summarize the results. There is ▼(Choose one) that the percentage of people who believe that there is life on other planets differs from 48%

(c)Compute the test value. Round the answer to at least two decimal places. z= (d)Make the decision. (choose one) the null hypothesis (e)Summarize the results. There is ▼(Choose one) that the percentage of people who believe that there is life on other planets differs from 48%

Name: Life on Other Planets Forty-eight percent of people believe that there
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Description: Life on Other Planets Forty-eight percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 130 randomly selected individuals and found 52 believed that there is life on

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 9PPS

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Concept explainers

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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100%

Life on Other Planets Forty-eight percent of people believe that there is life on other planets in the universe. A scientist does not agree with this finding. He surveyed 130

randomly selected individuals and found 52 believed that there is life on other planets. At

α=0.05 , is there sufficient evidence to conclude that the percentage differs from

48% ? Use the critical value method with tables.

(a)State the hypotheses and identify the claim.

:H0 ▼(Choose one)

:H1 ▼(Choose one)

This hypothesis test is a ▼(Choose one) test.

(b)Find the critical value(s). Round the answer to two decimal places. If there is more than one critical value, separate them with commas.

Critical Value(s):

(c)Compute the test value. Round the answer to at least two decimal places.

(d)Make the decision.

(choose one) the null hypothesis

(e)Summarize the results.

There is ▼(Choose one) that the percentage of people who believe that there is life on other planets differs from

48%

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