For each of the following settings in Exercises 2.1.1-2.1.4, (i) identify the variable(s) in the study, (ii) for each vari- able tell the type of variable (e.g.,categorical and ordinal, discrete, etc.), (iii) identify the observational unit (the thing sampled), and (iv) determine the sample size. A total of 129 persons donated blood. For each of them, the blood type and cholesterol levels were recorded. 2.1.3 (a) A biologist measured the number of leaves on each of 25 plants. 2.1.1 (a) A paleontologist measured the width (in mm) of the last upper molar in 36 specimens of the extinct mam- mal Acropithecus rigidus. (b) The birthweight, date of birth, and the mother's race were recorded for each of 65 babies. (b) A physician recorded the number of seizures that each of 20 patients with severe epilepsy had during an eight-week period. 2.1.4 (a) A conservationist recorded the weather (clear, partly cloudy, cloudy, rainy) and number of cars parked at noon at a trailhead on each of 18 days (b) An enologist measured the pH and residual sugar content (g/l) of seven barrels of wine. 2.1.2 (a) A physician measured the height and weight of each of 37 children. (b) During a blood drive, a blood bank offered to check the cholesterol of anyone who donated blood.
For each of the following settings in Exercises 2.1.1-2.1.4, (i) identify the variable(s) in the study, (ii) for each vari- able tell the type of variable (e.g.,categorical and ordinal, discrete, etc.), (iii) identify the observational unit (the thing sampled), and (iv) determine the sample size. A total of 129 persons donated blood. For each of them, the blood type and cholesterol levels were recorded. 2.1.3 (a) A biologist measured the number of leaves on each of 25 plants. 2.1.1 (a) A paleontologist measured the width (in mm) of the last upper molar in 36 specimens of the extinct mam- mal Acropithecus rigidus. (b) The birthweight, date of birth, and the mother's race were recorded for each of 65 babies. (b) A physician recorded the number of seizures that each of 20 patients with severe epilepsy had during an eight-week period. 2.1.4 (a) A conservationist recorded the weather (clear, partly cloudy, cloudy, rainy) and number of cars parked at noon at a trailhead on each of 18 days (b) An enologist measured the pH and residual sugar content (g/l) of seven barrels of wine. 2.1.2 (a) A physician measured the height and weight of each of 37 children. (b) During a blood drive, a blood bank offered to check the cholesterol of anyone who donated blood.
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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answer 2.1.2 to 2.1.4
Transcribed Image Text:For each of the following settings in Exercises 2.1.1-2.1.4,
(i) identify the variable(s) in the study, (ii) for each vari-
able tell the type of variable (e.g., categorical and ordinal,
discrete, etc.), (iii) identify the observational unit (the
thing sampled), and (iv) determine the sample size.
A total of 129 persons donated blood. For each of
them, the blood type and cholesterol levels were
recorded.
2.1.3
(a) A biologist measured the number of leaves on each
of 25 plants.
2.1.1
(a) A paleontologist measured the width (in mm) of the
last upper molar in 36 specimens of the extinct mam-
mal Acropithecus rigidus.
(b) The birthweight, date of birth, and the mother's race
were recorded for each of 65 babies
(b) A physician recorded the number of seizures that
cach of 20 patients with severe epilepsy had during
an eight-week period.
2.1.4
(a) A conservationist recorded the weather (clear, partly
cloudy, cloudy, rainy) and number of cars parked at
noon at a trailhead on each of 18 days.
(b) An enologist measured the pH and residual sugar
content (g/1) of seven barrels of wine.
2.1.2
(a) A physician measured the height and weight of each
of 37 children.
(b) During a blood drive, a blood bank offered to check
the cholesterol of anyone who donated blood.
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