new born weight the 95% confidence interva; for the mean weight of intanst born to mothjers who smoke is 5.7 to 6.5, 7.2
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We have a 95% confidence interval for the mean weight of infants born to mothers who smoke, which is from 5.7 to 6.5 pounds. Show more…
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The 95% confidence interval for the mean weight of infants born to mothers who smoke is 5.7 to 6.5 pounds. The confidence interval was calculated with the usual formula: . Confidence intervals constructed in this way are symmetrical around the mean; is the mid-point of the confidence interval. What is the margin of error of the confidence interval?
Hoan N.
The 95% confidence interval for the mean weight of infants born to mothers who smoke is 5.7 to 6.5 pounds. The mean weight for all newborns in this region is 7.2 pounds. Is the birth weight of the infants in this sample significantly different from that of the general population at α = 0.05? Explain your response. The 95% confidence interval (5.7 to 6.5 pounds) was calculated with the usual formula x̄ ± z_α/2 × σ/√n
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