A Random Sample of 49 Statistics Examinations Was Taken

question 100

Multiple Choice

A random sample of 49 statistics examinations was taken. The average score, in the sample, was 84 with a variance of 12.25. The 95% confidence interval for the average examination score of the population of the examinations is

• A)76.00 to 84.00
• B)77.40 to 86.60
• C)83.00 to 85.00
• D)68.00 to 100.00

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Definitions:

Mode

The mode, or the value with the highest frequency, in a set of numbers.

Males

Refers to the male gender or sex, typically used in studies or statistics to denote participants or subjects that are biologically male.

Females

Females refer to the sex of an organism, or a part of an organism, that produces non-mobile ova (egg cells) and can typically bear offspring or produce seed.

Exam Mean

The average score obtained by all the examinees in an examination.