TABLE 9- 1
Microsoft Excel Was Used on a Set

question 85

True/False

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 null hypothesis would be rejected if a 4% probability of committing a Type I error is allowed.

---

Definitions:

Precedent

An authoritative legal ruling or procedural method that sets a precedent for handling future cases that are similar or related.

Unanimous Opinion

A judicial decision or legal opinion in which all the judges or justices agree on the outcome and reasoning.

Memorandum

A written message or note, often informal, used within an organization or between organizations to communicate information.

Precedent

A legal principle or rule established in a previous court case that is either binding on or persuasive for a court when deciding subsequent cases with similar issues or facts.