Assuming That the Food Costs Are Normally Distributed, What Is

question 112

Multiple Choice

Assuming that the food costs are normally distributed, what is the probability that a family
Spends less than $410 per month?

• A) 0.2158
• B) 0.8750
• C) 0.0362
• D) 0.1151

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Definitions:

Degrees of Freedom

The volume of independent values or figures that may be assigned within a statistical distribution.

Standard Error

A statistical measure that quantifies the amount of variability in the sampling distribution of a statistic, often used to estimate the accuracy of sample means.

Sample Means

The average value obtained from a sample, used as an estimate of the population mean.

Null Hypothesis

An initial assumption made for statistical analysis that suggests no significant effect or relationship exists between variables.