2. In a study of pregnant women and their ability to correctly predict the sex of their baby, 59 of the pregnant women had 12 years of education or less, and 42.4% of these women correctly predicted the sex of their baby. Use a 0.05 significance level to test the claim that these women have an ability to predict the sex of their baby equivalent to random guesses. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and conclusion about the null hypothesis. Use the P- value method. Do the results suggest that their percentage of correct predictions is different from results expected with random guesses? a. Identify the null and alternative hypotheses. b. The test statistic is z= (Round to two decimal places as needed.) C. The P-value is (Round to four decimal places as needed.) d. Identify the conclusion about the null hypothesis. Do the results suggest that their percentage of correct predictions is different from results expected with random guesses? There sufficient evidence to warrant rejection of the claim that these women have an ability to predict the sex of their baby equivalent to random guesses. The results for these women with 12 years of education or less suggests that their percentage of very different from results expected with random guesses. correct predictions

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
icon
Related questions
Question
2. In a study of pregnant women and their ability to correctly predict the sex of their baby, 59 of the
pregnant women had 12 years of education or less, and 42.4% of these women correctly predicted
the sex of their baby. Use a 0.05 significance level to test the claim that these women have an ability
to predict the sex of their baby equivalent to random guesses. Identify the null hypothesis,
alternative hypothesis, test statistic, P-value, and conclusion about the null hypothesis. Use the P-
value method. Do the results suggest that their percentage of correct predictions is different from
results expected with random guesses?
a. Identify the null and alternative hypotheses.
b. The test statistic is z=
(Round to two decimal places as needed.)_
C. The P-value is
(Round to four decimal places as needed.)
d. Identify the conclusion about the null hypothesis. Do the results suggest that their
percentage of correct predictions is different from results expected with random guesses?
There
sufficient evidence to warrant rejection of the claim that these
women have an ability to predict the sex of their baby equivalent to random guesses. The
results for these women with 12 years of education or less suggests that their percentage of
very different from results expected with random guesses.
correct predictions
Transcribed Image Text:2. In a study of pregnant women and their ability to correctly predict the sex of their baby, 59 of the pregnant women had 12 years of education or less, and 42.4% of these women correctly predicted the sex of their baby. Use a 0.05 significance level to test the claim that these women have an ability to predict the sex of their baby equivalent to random guesses. Identify the null hypothesis, alternative hypothesis, test statistic, P-value, and conclusion about the null hypothesis. Use the P- value method. Do the results suggest that their percentage of correct predictions is different from results expected with random guesses? a. Identify the null and alternative hypotheses. b. The test statistic is z= (Round to two decimal places as needed.)_ C. The P-value is (Round to four decimal places as needed.) d. Identify the conclusion about the null hypothesis. Do the results suggest that their percentage of correct predictions is different from results expected with random guesses? There sufficient evidence to warrant rejection of the claim that these women have an ability to predict the sex of their baby equivalent to random guesses. The results for these women with 12 years of education or less suggests that their percentage of very different from results expected with random guesses. correct predictions
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning