TABLE 9- 1
Microsoft Excel Was Used on a Set

question 142

Short Answer

TABLE 9- 1
Microsoft Excel was used on a set of data involving the number of parasites found on 46 Monarch butterflies captured in Pismo Beach State Park. A biologist wants to know if the mean number of parasites per butterfly is over 20. She will make her decision using a test with a level of significance of 0.10. The following information was extracted from the Microsoft Excel output for the sample of 46 Monarch butterflies:
$\begin{array}{llcc} \hline n=46 ; \text { Arithmetic Mean }=28.00 ; \text { Standard Deviation }=25.92 ; \text { Standard Error }=3.82 ; \\\text { Null Hypothesis:} H_{0}: \mu \leq 20.000 ; \alpha=0.10 ; d f=45 ; T \text { Test Statistic} = 2.09;\\\text { One-Tailed Test Upper Critical Value} =1.3006 ;\text { p-value} =0.021 ; \text { Decision = Reject.}\\\hline\end{array}$

-Referring to Table 9-1, the probability of committing a Type II error is _ if the mean number of parasites per butterfly on Monarch butterflies in Pismo Beach State Park is 18 using a 0.05 level of significance and assuming that the population standard deviation is 25.92.

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Definitions:

Independent Variable

The variable in an experiment that is manipulated by the researcher to observe its effect on the dependent variable.

Comprehension

The ability to understand or grasp the meaning of something.

Test Scores

Quantitative measures obtained from educational assessments or exams; also not a key term in a statistical context alone, thus NO.

Reliable

A term indicating the consistency or repeatability of a measure or test over time.