Exhibit 8-2 A Random Sample of 121 Automobiles Traveling on an Interstate

question 98

Multiple Choice

Exhibit 8-2
A random sample of 121 automobiles traveling on an interstate showed an average speed of 65 mph. From past information, it is known that the standard deviation of the population is 22 mph.
-Refer to Exhibit 8-2. If the confidence coefficient is reduced to 0.9, the standard error of the mean

• A)will increase
• B)will decrease
• C)remains unchanged
• D)becomes negative

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Definitions:

Sperm

The male reproductive cell, or gamete, in sexually reproducing organisms, designed to fertilize the female ovum.

Chromosomal Abnormalities

Variations in the number or structure of chromosomes, often leading to genetic disorders or variations.

Miscarriage

The spontaneous loss of a pregnancy before the fetus is able to survive outside the womb, typically before the 20th week of pregnancy.

Human Genetics

The science of inherited variation in humans.