Instruction 9-2
Microsoft Excel Was Used on a Set of Data

question 117

Short Answer

Instruction 9-2
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 9-2,the power of the test is ________if the mean number of parasites per butterfly on Blue Tiger butterflies in Kakadu National Park is 30 using a 0.05 level of significance and assuming that the population standard deviation is 25.92.

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Definitions:

Interest Expense

The expenditure an entity incurs from borrowing funds during a certain period.

Notes Payable

Written agreements in which one party promises to pay another party a definite sum of money either on demand or at a specified future date.

Payment

The act of transferring money or other valuable items in exchange for goods, services, or to fulfill a legal obligation.

Effective Interest Method

A method of calculating the interest expense on a bond or loan that considers the impact of amortizing premium or discount over the life of the financial instrument.