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

question 10

True/False

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 null hypothesis would be rejected if a 5% probability of committing a Type I error is allowed.

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Definitions:

Strictly Convex Preferences

Preferences that demonstrate a consumer's increasing marginal rate of substitution, indicating a strong preference for diversified bundles of goods over homogeneous bundles.

Indifference Curves

Graphs representing different bundles of goods between which a consumer is indifferent, showing the combinations of goods that provide the same level of utility to the consumer.

Marginal Utility

The additional satisfaction or utility a consumer gains from consuming one more unit of a good or service.

Competitive Equilibrium Price Ratio

The ratio of prices that ensures the equality of supply and demand in a competitive market, often used to observe relative price changes between commodities.