Why might I want to adopt a one-tailed test in Exercise 8.2, and which tail should I

Question:

Why might I want to adopt a one-tailed test in Exercise 8.2, and which tail should I choose?

What would happen if I choose the wrong tail?

Exercise 8.2

For the past year I have spent about $4 a day for lunch, give or take a quarter or so.

a) Draw a rough sketch of this distribution of daily expenditures.

b) If, without looking at the bill, I paid for my lunch with a $5 bill and received $.75 in change, should I worry that I was overcharged?

c) Explain the logic involved in your answer to (b).

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Related Book For book-img-for-question

Fundamental Statistics For The Behavioral Sciences

ISBN: 9781305652972

9th Edition

Authors: David C. Howell

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Question Posted: Apr 28, 2024 08:00 AM

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Why might I want to adopt a one-tailed test in Exercise 8.2, and which tail should I

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Fundamental Statistics For The Behavioral Sciences

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