You wish to estimate the mean cholesterol levels of patients two days after they had a heart attack
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You wish to estimate the mean cholesterol levels of patients two days after they had a heart attack

1. You wish to estimate the mean cholesterol levels of patients two days after they had a heart attack. To estimate the mean, you collect data from 28 heart patients. Justify for full credit.

(a) Which of the followings is the sample?

(i) Mean cholesterol levels of 28 patients recovering from a heart attack suffered two days ago

(ii) Cholesterol level of the person recovering from heart attack suffered two days ago

(iii) Set of all patients recovering from a heart attack suffered two days ago

(iv) Set of 28 patients recovering from a heart attack suffered two days ago


(b) Which of the followings is the variable?

(i) Mean cholesterol levels of 28 patients recovering from a heart attack suffered two days ago

(ii) Cholesterol level of the person recovering from heart attack suffered two days ago

(iii) Set of all patients recovering from a heart attack suffered two days ago

(iv) Set of 28 patients recovering from a heart attack suffered two days ago

Hint
Statisticsa)sample the selected group of units from population. here 28 patients comprise of sample. (iv) Set of 28 patients recovering from a heart attack suffered two days ago ...

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