Dullco Manufacturing Claims That Its Alkaline Batteries Last at Least

question 56

Multiple Choice

Dullco Manufacturing claims that its alkaline batteries last at least 40 hours on average in a certain type of portable CD player. But tests on a random sample of 18 batteries from a day's large production run showed a mean battery life of 37.8 hours with a standard deviation of 5.4 hours. To test DullCo's hypothesis, the p-value is:

• A)slightly less than .05.
• B)exactly equal to .05.
• C)slightly greater than .05.
• D)uncertain without knowing α.

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Definitions:

Genetically Similar

Refers to organisms or entities that share a high degree of genetic material or DNA sequences with each other.

Germ Cells

The sperm and ova, which are specialized for sexual reproduction and have half the number of chromosomes normal for a species.

Somatic Cells

These are any cells forming an organism's body, excluding reproductive cells.

Meiosis

The process that produces sperm and ova, each of which contains only half of the parent cell’s original complement of 46 chromosomes.