Mathematics, 25.12.2019 20:31 stranger123
The mean weight of 10 randomly selected newborn babies at a local hospital is 7.14 lbs and the standard deviation is 0.87 lbs. assume the weight of newborn babies has approximately normal distribution. a. find the margin of error for the 90% confidence interval for the mean weight of all newborn babies at this hospital. b. use information from part (a) to fill in the blanks in the following sentence: of all samples of size have sample means within of the population mean. c. find a 90% confidence interval for the mean weight of all newborn babies at this hospital. d. does the confidence interval, at 90% confidence level, provide sufficient evidence that the mean weight of a newborn at this hospital is above 6.5 lb? write the appropriate inequality to justify your answer. e. if you increase the confidence level (1-), will the confidence interval estimate be wider or narrower? explain.
Answers: 2
Mathematics, 21.06.2019 14:30, meandmycousinmagic
Select the correct answer. what is the surface area of the victory podium shown here? include all surfaces of the podium, including the bottom. a. 61.5 square feet b. 61.75 square feet c. 65.25 square feet d. 69 square feet
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Mathematics, 21.06.2019 16:00, dtovar4922
Apatient is to take 60 mg of an antibiotic on day 1, take 45mg on days 2 and 3, take 30mg on days 4 and 5 and take 15 mg on days 6 and 7. how many total mg will the patient take?
Answers: 1
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