# Descriptive Statistics, Frequencies, and Hypothesis Testing

Descriptive Statistics, Frequencies, and Hypothesis Testing

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• Calculating standard score (z-score)

Project 2 was worth 60 points. The class had an average of 51.24 and a variance of 14.25. Look up your own raw score and calculate your z-score. Provide the following pieces of information:

• Calculating Descriptive Statistics and Frequencies

From the Perdue dataset, pick any two of the following variables that were not part of the lecture materials and report the following statistics for each variable:

Variable Options: Brand_Good, Brand_Like, Entertaining, Irritated, Excited, Favorable

Statistics: Mean, standard deviation, mode, frequency analysis table, histogram chart

What do the statistics tell us about each variable? Briefly discuss.

• Calculating Chi Square

When asked the brand name of the chicken in the ad they just watched, 16 participants reported “Fresh and Tasty” brand, 171 reported “Perdue”, and 1 particpant reported “Tyson.”

Based on knowledge of the population and previous research, the researchers expected that 90% of participants would guess Perdue with 5% of participants guessing “Fresh and Tasty” and 5% guessing “Tyson.”

Is the sample significantly different than the population? Test this question using chi square analysis. Report the chi square statistic and its p-value.

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