A sample of 500 evening students revealed that their annual incomes from employment in industry
During the day were normally distributed with a mean income of $30,000 and a standard deviation
Of $3,000.
(i. 250 students earned more than $30,000.
(ii. 500 students earned between $20,000 and $40,000.
(iii) 11 students earned more than $36,000.
A) (i) , (ii) , and (iii) are all correct statements.
B) (i) is a correct statement but not (ii) or (iii) .
C) (i) and (iii) are correct statements but not (ii) .
D) (i) and (ii) are correct statements but not (iii) .
E) (ii) and (iii) are correct statements but not (i) .
Correct Answer:
Verified
Q133: Replacement times for TV sets are normally
Q134: One classic use of the normal distribution
Q135: Replacement times for TV sets are normally
Q136: A loaf of bread is normally distributed
Q137: Replacement times for TV sets are normally
Q139: Assume that human body temperatures are normally
Q140: Two business major students, in two different
Q141: One classic use of the normal distribution
Q142: Normally distributed observations such as a person's
Q143: Normally distributed observations such as a person's
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents