A Chi-Square Goodness of Fit Test for a Normal Distribution

question 87

Multiple Choice

A chi-square goodness of fit test for a normal distribution used 40 observations, and the mean and standard deviation were estimated from the sample. The test used six categories. We would use how many degrees of freedom in looking up the critical value for the test?

• A)39
• B)37
• C)5
• D)3

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Definitions:

Ciliated Larvae

Larval forms of certain aquatic animals, particularly some mollusks and annelids, which have cilia (tiny hair-like structures) for movement and feeding.

Jellylike Matrix

A viscous, gelatinous substance that provides structural support to various tissue types, such as the connective tissue.

Gastrovascular Cavity

A saclike gut that also functions in gas exchange.

Cnidarians

A phylum of aquatic invertebrates known for their distinctive body structure featuring a jelly-like substance called mesoglea, and their tentacles equipped with cnidocytes for prey capture and defense.