Mathematics, 03.09.2020 09:01 abbeyeasterwood
A pediatrician’s records showed the mean height of a random sample of 25 girls at age 12 months to be 29.530 inches with a standard deviation of 1.0953 inches. (a) Construct a 95 percent confidence interval for the true mean height. (4 marks) (b) What sample size would be needed for 95 percent confidence and an error of 6.20 inch?
Answers: 3
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If the class was going to get a class pet and 5 picked fish and 7 pick bird and 8 picked rabbits have many students were in the
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Mathematics, 22.06.2019 02:30
Aresearch study is studying the effects of a new drug for osteoporosis alzheimer's disease (ad) for women above the age of 65 years. a group of individuals with osteoporosis is randomized into two groups. one group is treated conventionally, and the second group is treated with the new medication. assessments are made at 3, 6, 12, 36, and 48 months. the conventionally treated group is assessed for ad using a serum blood test, and the treatment group is assessed for ad using a pet radiotracer that binds to beta-amyloid plaques. in comparing these 2 trial arms, the authors of the study may encounter which type of bias? a. selection bias on the risk of developing b. measurement bias c. confounding bias d. recall bias e. lead-time bias
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Mathematics, 22.06.2019 03:30
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Mathematics, 22.06.2019 05:30
Point q is located at (−4,6). point r is located at (8, 6). what is the distance from point q to point r?
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A pediatrician’s records showed the mean height of a random sample of 25 girls at age 12 months to b...
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