- Homework Ch 12 Hw Chisquare Procedure Question 8 12 1 25 T Part 6 Of 7 Hw Score 68 75 11 Of 16 Points O Points 0 1 (40.58 KiB) Viewed 10 times
- Homework Ch 12 Hw Chisquare Procedure Question 8 12 1 25 T Part 6 Of 7 Hw Score 68 75 11 Of 16 Points O Points 0 2 (47.85 KiB) Viewed 10 times
||| Homework: Ch 12 HW: ChiSquare Procedure Question 8, 12.1.25-T Part 6 of 7 According to a census company, 7.1% of all babies born are of low birth weight. An obstetrician wanted to know whether mothers between the ages of 35 and 39 years give birth to a higher percentage of low-birth-weight babies. She randomly selected 240 births for which the mother was 35 to 39 years old and found 28 low-birth-weight babies Complete parts (a) through (c) below. low-birth-weignit babies at the qu10 level of signimicance ✔B. Reject the null hypothesis. There is sufficient evidence to conclude that mothers between the ages of 35 and 39 years give birth to a higher percentage of low-birth-weight babies at the a 0,10 level of significance HW Score: 68.75%, 11 of 16 points O Points: 0 of 1 OCDo not reject the null hypothesis. There is not sufficient evidence to conclude that mothers between the ages of 35 and 39 years give birth to a higher percentage of low-birth-weight babies at the a=0.10 level of significance OD. Do not reject the null hypothesis. There is sufficient evidence to conclude that mothers between the ages of 35 and 39 years give birth to a higher percentage of low-birth-weight babies at the a=0.10 level of significance (c) Answer the obstetrician's question at the a-0.10 level of significance using a z-test for a population proportion State the null and alternative hypotheses for this test p 0.071 H₁ P > 0.071 Use technology to compute the P-value for this test. Use the Tech Help button for further assistance P-value (Round to three decimal places as needed) Help me solve this View an example Get more help. Save Clear all Check answer