Mathematics, 08.07.2019 17:30, wakandafoodyoup9ioz4
According to a census company, 10.1% 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 26 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 0.101, 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? b)- answer the obstetrician's question at the alpha equals α=0.10 level of significance using the chi-square goodness-of-fit test. state the null and alternative hypotheses for this test. -use technology to compute the p-value for this test. -state a conclusion for this test in the context of the obstetrician's question. c)-answer the obstetrician's question at the alpha equals α=0.10 level of significance using a z-test for a population proportion. state the null and alternative hypotheses for this test. -use technology to compute the p-value for this test. -state a conclusion for this test in the context of the obstetrician's question.
Answers: 3
Mathematics, 21.06.2019 18:50, adriana145
The trigonometric ratios sine and secant are reciprocals of each other
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Mathematics, 21.06.2019 21:00, memoryofdale
Circle a has a diameter of 7 inches, a circumference of 21.98 inches, and an area of 38.465 square inches. the diameter of circle b is 6 inches, the circumference is 18.84 inches, and the area is 28.26 square inches. part a: using the formula for circumference, solve for the value of pi for each circle. (4 points) part b: use the formula for area and solve for the value of pi for each circle. (4 points)
Answers: 2
According to a census company, 10.1% of all babies born are of low birth weight. an obstetrician wan...
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