Instruction 9-7
Microsoft Excel Was Used on a Set $n = 46$

question 94

Multiple Choice

Instruction 9-7
Microsoft Excel was used on a set of data involving the number of parasites found in a random sample of 46 Blue Tiger butterflies captured in Kakadu National Park. A biologist wants to know if the mean number of parasites per butterfly is greater than 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 butterflies:
$n = 46$ ; Arithmetic Mean $= 28.00$ ; Standard Deviation $= 25.92$ ; Standard Error $= 3.82$ ;
Null Hypothesis: $H _ { 0 } : \mu \leq 20.000 ; a = 0.10 ; \mathrm { df } = 45 ; T$ Test Statistic $= 2.09$ ;
One-Tailed Test Upper CriticalValue $= 1.3006 ; p$ value $= 0.021$ ; Decision $=$ Reject.
-Referring to Instruction 9-7,the parameter the biologist is interested in is the

• A) mean number of parasites on Blue Tiger butterflies in Kakadu National Park.
• B) mean number of butterflies in Kakadu National Park.
• C) proportion of butterflies with parasites.
• D) mean number of parasites on these 46 butterflies.

---

Definitions:

Polio Immunizations

Vaccinations given to prevent poliomyelitis, a viral disease that can cause paralysis and is preventable with immunization.

Developing Country

A nation with a lower level of industrialization, smaller economy, and lower living standards compared to developed countries.

Health Protection

Activities aimed at preventing infectious diseases, environmental hazards, and emerging health threats to the public.

Health Promotion Planning

The process of identifying and implementing strategies to improve the health and well-being of individuals and communities, often through behavior change interventions.