Question

A biologist speculates that peregrine falcons that roost in downtown skyscrapers are better feed than those...

A biologist speculates that peregrine falcons that roost in downtown skyscrapers are better feed than those that live in more natural habitats. They captured and weighed 10 falcons from a national park and compared the average weight of 15 falcons from Chicago. They formulated the following null and alternative hypothesis for a t-test.

H0: There is no difference in the mean weight of rural and urban peregrine falcons.

H1: Urban peregrine falcons on average weigh more than rural peregrine falcons.They recorded the necessary sample statistics for this t-test in the following table

Urban Falcon:

2.25, 2.9, 2.75, 2.8, 2.2, 2.3, 2.45, 2.8, 2.15, 2.3

Park Falcon:

1.5, 1.45, 1.89, 2.9, 2.25, 2.3, 2.15, 2

Using the data above conduct an appropriate one-sided t-test at α= 0.025. Record your calculator output below (round your answers to three decimal places-as always I review your answers)

(a) t-statistic:

(b) p-value:

(c) df:

Homework Answers

Answer #1

(a) t-statistic: 2.427

(b) p-value: 0.014

(c) df: 16

Conclusion: The p-value of t test is less than 0.025. Hence we reject null hypothesis and conclude that urban peregrine falcons on average weigh more than rural peregrine falcon.

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT