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:

Sperm Cells

Male reproductive cells designed to fertilize female eggs.

Ovule

The part of the ovary of seed plants that contains the female germ cell and after fertilization becomes the seed.

Fruit

The mature ovary of a flowering plant, often containing seeds and consumed as food by a variety of organisms.

Double Fertilization

A distinctive process in angiosperms whereby one sperm cell fertilizes the egg cell to form a zygote while another sperm cell combines with two polar nuclei to form an endosperm.