$\text { TABLE 9-1 }$ Microsoft Excel Was Used on a Set of Data Involving

question 2

True/False

$\text { TABLE 9-1 }$
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 wantsto know if the mean number of parasites per butterfly is over 20 . She will make her decision usinga test witha level of significance of $0.10$ . The following informationwas extracted from the Microsoft Excel outputfor the sample of 46 Monarchbutterflies:

$\begin{array}{llcc} \hline n=46 ; \text { Arithmetic Mean }=28.00 ; \text { Standard Deviation }=25.92 ; \text { Standard Error }=3.82 ; \\\text { Null Hypothesis:} H_{0}: \mu \leq 20.000 ; \alpha=0.10 ; d f=45 ; T \text { Test Statistic} = 2.09;\\\text { One-Tailed Test Upper Critical Value} =1.3006 ;\text { p-value} =0.021 ; \text { Decision = Reject.}\\\hline\end{array}$


-Referring to Table 9-1, the biologist can conclude that there is sufficient evidence to show that the average number of parasites per Monarch butterfly in Pismo Beach State Park is over 20 with no more than a 5% probability of incorrectly rejecting the true null hypothesis.

---

Definitions:

Business Elsewhere

The decision by a customer to take their business to a competitor or alternative provider, usually due to dissatisfaction.

Necessary

Items or services considered essential for basic living and survival, often distinguishing between luxury goods and necessities for legal and economic purposes.

Custom-Made

Items or products that are specifically designed and produced to meet the unique requirements of an individual or entity.

Winter Coat

An article of outdoor clothing designed to provide warmth and protection against cold weather conditions, typically featuring insulation and water-resistant materials.