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Sally’s dog just received second place in obedience class. This is considered a ________scale of measurement.

A relative frequency is:

A table that lists scores on a variable and shows the number of occurrences of each score is called a _______ distribution.

Dr. Johnson hypothesizes that NutraSweet reduces short-term memory. In order to test her hypothesis she gives 10 subjects a beverage containing NutraSweet (treatment group) and 10 subjects a beverage without NutraSweet (control group). She then measures the subject’s ability to recall a list of numbers. What is the independent variable?

Round the following value to four decimal places: 3.45599

Based on the box-plot depicted in the picture, what is the approximate value of the maximum score?

When a relative frequency is multiplied by 100, it reflects the _____ of times the score occurred.

What is the critical chi-square value for the ice cream preference problem at alpha .05? **Report your answer to 2 decimal places.

The relative frequencies in a distribution will always sum to:

A researcher is interested in whether frequencies of ice cream preference are evenly distributed across the three categories of vanilla, chocolate, and strawberry. Use the data in the table below to test the prediction that ice cream preference is evenly distributed. **Report the observed chi-square statistic to 4 decimal places. Ice Cream Preference N Vanilla 81 Chocolate 66 Strawberry 45