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In a study of pregnant women and their ability to correctly predict the sex of their baby, 58 of the pregnant women had 12 years of education or less, and 37.9% of them correctly predicted the sex of their baby. Use a 0.05 significance level to test the claim that these women have no ability to predict the sex of their baby, and the results are not significantly different from those that would be expected with random guesses. Identify the null hypothesis, alternative hypothesis, test statistic, p-value, conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method. Use the normal distribution as an approximation of the binomial distribution.
a. Identify the null and alternative hypothesis
b. The test statistic is z=
c. The P-value is
d. Identify the conclusion about the null hypothesis and the final conclusion that addresses the original claim. ____H0. There ______ sufficient evidence to warrant rejection of the claim that these women have no ability to predict the sex of their baby. The results for these women with 12 years of education or less suggests that their percentage of correct predictions _____ very different from results expected with random guesses.
If the sum of squares regression is 1,000 and the sum of squares total is 5,000. Given that the sum of squares residual (or error) is 4,000 what is the r-squared value?
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1.determine whether each of the following is an experiment or an observational study. also identify the explanatory and
q1. in a college 15th of the girs and 18 th of the boys took part in a camp. what fraction of the total no of students
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