Question

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 37.3?% 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. Use the normal distribution as an approximation of the binomial distribution. Do the results suggest that their percentage of correct predictions is different from results expected with random? guesses? Identify the null and alternative hypotheses. Choose the correct answer below. A. H0?: pequals0.373 H1?: pnot equals0.373 B. H0?: pequals0.373 H1?: pless than0.373 C. H0?: pequals0.5 H1?: pless than0.5 D. H0?: pequals0.5 H1?: pgreater than0.5 E. H0?: pequals0.5 H1?: pnot equals0.5 F. H0?: pequals0.373 H1?: pgreater than what is the test statistic? what it the p value? what is the null hypothesis and what does it conclude? decide whether to reject the null hypothesis? what is the final conclusion?

Answer 1

Here claim is that women have an ability to predict the sex of their baby equivalent to random guesses.

So hypothesis is vs

Now and

Hence test statistics is

So P value is

As P value is greater than 0.05 significance level we fail to reject the null hypoothesis

Hence we conclude that women have an ability to predict the sex of their baby equivalent to random guesses.