Question 5 3 pts Imagine a researcher wanted to assess people\'s fear of dogs as

Question

Question 5 3 pts Imagine a researcher wanted to assess people's fear of dogs as a function of the size of the dog. He assessed fear among people who indicated they were afraid of dogs, using a 30-point scale from O (no fear) to 30 (extreme fear). The researcher exposed each participant to three different dogs, a small dog weighing 20 pounds, a medium-sized dog weighing 55 pounds, and a large dog weighing 110 pounds, assessing fear level after each exposure. Here are some hypothetical data from this study: Small Medium Large N 12 Ex-105 ??-204 3x2-395 5x2-1042 5x2-2785 ???2 4222 Fill in the following information Because we're conducting a(n) (ANOVA, t-test, z-test) we know the critical region has to be in (one, two) tail(s) State the null and alternative hypotheses in words Ho: The variability among groups of dog sizes is (greater than, less than, equal to, not equal to, greater than or equal to, less than or equal to) H1: The variability among groups of dog sizes is (greater than, less than, equal to, not equal to, greater than or equal to, less than or equal to) (numerical value) (numerical value)

Explanation / Answer

Because we are conducting an ANOVA, we know the critical region has to be two tails.

H0: The variability among the groups of dog sizes is equal to 0(Zero).

H1: The variability among the groups of dog sizes is not equal to 0(Zero).

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