Ajax Peanut Butter's Quality Control Allows 2 Percent of the Jars

question 2

Multiple Choice

Ajax Peanut Butter's quality control allows 2 percent of the jars to exceed the quality standard for insect fragments.A sample of 150 jars from the current day's production reveals that 30 exceed the quality standard for insect fragments.Which is incorrect?

• A) Normality of p may safely be assumed in the hypothesis test.
• B) A right-tailed test would be appropriate.
• C) Common sense suggests that quality control standards aren't met.
• D) Type II error is more of a concern in this case than Type I error.

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Definitions:

Inclusive Fitness

Genetic contribution an individual makes by reproducing, plus a fraction of the contribution it makes by facilitating reproduction of relatives.

Altruistic Behavior

Actions by an individual that benefit others at a cost to oneself, observed in social species, which may promote cooperation and social cohesion.

Kin Selection

Type of natural selection in which individuals with the highest inclusive fitness are favored.

Selfish Herd

A behavioral strategy where individuals in a group position themselves centrally to reduce predation risk.