In Performing a Chi-Square Goodness-Of-Fit Test for a Normal Distribution

question 67

Multiple Choice

In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expected cell frequencies are at least five. The sample is divided into 7 intervals. The second through the sixth intervals all have expected cell frequencies of at least five. The first and the last intervals have expected cell frequencies of 1.5 each. After adjusting the number of intervals, the degrees of freedom for the chi-square statistic is ________.

• A) 2
• B) 3
• C) 5
• D) 7

Demonstrate the ability to use NMR spectroscopy as a tool to investigate molecular dynamics and confirm the presence of specific atoms or functional groups.

Explain the influence of isotopic substitution on NMR spectra.

Understand the concept of nominal variables and their representation by indicator (dummy) variables.

Recognize when to use indicator variables in multiple regression models.

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Definitions:

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