A Researcher Believes That a Variable Is Poisson Distributed Across

question 20

Multiple Choice

A researcher believes that a variable is Poisson distributed across six categories.To test this, the following random sample of observations is collected: $$\begin{array} { | l | l | l | l | l | l | l | } \hline \text { Categary } & 0 & 1 & 2 & 3 & 4 & \geq 5 \\\hline \text { Observed } & 7 & 18 & 25 & 17 & 12 & 5 \\\hline\end{array}$$ Using $\alpha$ = 0.10, the critical value of chi-square for the data is _______.

• A)9.236
• B)7.779
• C)13.277
• D)12.89
• E)1.064

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Definitions:

FR-1

A fixed-ratio 1 schedule in operant conditioning, where reinforcement is given after every correct response.

Punishing Stimulus

A stimulus that reduces the likelihood of the behavior occurring again by introducing a negative consequence or outcome.

Ineffective

Not producing the desired outcome or effect.

Tantrum Behavior

A form of emotional outburst, often observed in children, characterized by yelling, crying, or physically lashing out.