his Question: 1 pt 14 of 14 (0 This Quiz: 14 pts possible Hep to correctly predi

Question

his Question: 1 pt 14 of 14 (0 This Quiz: 14 pts possible Hep to correctly predict the sex of their baby, 56 ofthe pregnant women had 12 years of education or less, and 37.5% 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 guesses, Identify the null ability to predict the sex of their baby and about the nu method. Use the normal di results expected with random guesses? as an approximation of the binomial distribution Do the results suggest that their percentage of correct pr O A. Ho p 0.375 H, p#0375 H, p#05 H, p05 O D. Ho p-0.375 O E. Ho p 0.375 O F. Ho p-05 The test statistic is z (Round to two decimal places as needed ) The P-value is ? (Round to four decimal places as needed) H Theresufficient 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 correct predictionsvery diferent from results expected with random guesses 8 Pearson Education

Explanation / Answer

The statistical software output for this problem is:

One sample proportion summary hypothesis test:
p : Proportion of successes
H0 : p = 0.5
HA : p ? 0.5

Hypothesis test results:

Hence,

Hypotheses: Option C is correct.

z = -1.87

P - value = 0.0614

Do not reject; is not; do not

Proportion Count Total Sample Prop. Std. Err. Z-Stat P-value p 21 56 0.375 0.06681531 -1.8708287 0.0614

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