Question

There are 2 pages to this question, please do both

In a study of pregnant women and their ablity to correct y predict the sex of their baby, 59 of the pregnant women had 12 years of edu cation or less, and 424% 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, altornative 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? dentify the null and alternative hypotheses. Choose the correct answer below OB. Ho p-0424 H4p#0424 D. Hop-o424 H, p> 0.424 H, p>0.5 H, p<05 Нор-О424 H, p<0 424 О Е. H: P#05 The test statistic is(Round to two decimal places as needed) The P-value is □ (Round to four decimal places as needed ) identify the condusion about the null hypothesis Do the results suggest that their percentage of correct predictions is diflerent from results expected with random guesses? 7 Ho Theresuficient evidence to warrant rejection of the claim that these women have an abilily to predict the sex of their baby equivalent to Click to select vour answerls)

Answer 1

The statistical software output for this problem is:

One sample proportion summary hypothesis test:

p : Proportion of successes
H₀ : p = 0.5
H_A : p ≠ 0.5

Hypothesis test results:

Proportion	Count	Total	Sample Prop.	Std. Err.	Z-Stat	P-value
p	25.016	59	0.424	0.065094455	-1.1675342	0.243

Hence,

Hypotheses: Option F is correct.

z = -1.17

P = 0.2430

Do not reject; is not; is not