A maternity study evaluated the effect of the mother's stress on the baby's weight at birth. 86 recent mothers with a history of stress who did not have medical or obstetric risk factors during their pregnancy were identified. Of these mothers, 11 of them, gave birth to babies with low weight. Estimate with a confidence interval the percentage of low-weight babies who were born when the mother has suffered from stress during her pregnancy. Use 5% significance level A. (8.31, 13.7) B. The estimate cannot be made with the information provided C. (8.99, 13.01) D. (0.07, 0.22; E. (0.05, 0.19)

MATLAB: An Introduction with Applications
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A maternity study evaluated the effect of the mother's stress on the baby's weight at birth. 86 recent mothers with a history of stress who did not have medical or obstetric risk factors during their pregnancy were identified. Of these mothers, 11 of them, gave birth to babies with low weight. Estimate with a confidence interval the percentage of low-weight babies who were born when the mother has suffered from stress during her pregnancy. Use 5% significance level

A. (8.31, 13.7)

B. The estimate cannot be made with the information provided

C. (8.99, 13.01)

D. (0.07, 0.22;

E. (0.05, 0.19)

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