According to a census company, 7.1% of all babies bon 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. (a) If the proportion of low-birth-weight babies for mothers in this age group is 0.071, compute the expected number of low birth weight births to 35- to 39-year-old mothers. What is the expected number of births to mothers 35 to 39 years old that are not low birth weight? The expected number of low-birth-weight births to 35- to 39-year-old mothers is 17.04 The expected number of births (Type integers or decimals.) mothers 35 to 39 years old that are not low birth weight is 222 96 (b) Answer the obstetrician's question at the a=0.05 level of significance using the chi-square goodness-of-fit test. State the null and altermative hypotheses for this test Hg P 0.071 H 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.)

According to a census company, 7.1% of all babies bon 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. (a) If the proportion of low-birth-weight babies for mothers in this age group is 0.071, compute the expected number of low birth weight births to 35- to 39-year-old mothers. What is the expected number of births to mothers 35 to 39 years old that are not low birth weight? The expected number of low-birth-weight births to 35- to 39-year-old mothers is 17.04 The expected number of births (Type integers or decimals.) mothers 35 to 39 years old that are not low birth weight is 222 96 (b) Answer the obstetrician's question at the a=0.05 level of significance using the chi-square goodness-of-fit test. State the null and altermative hypotheses for this test Hg P 0.071 H 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.)

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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