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MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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![If you wanted to be 99% confident that your estimate of the
average Florida rainfall was within 3 inches of the true average, how
many places in Florida should you survey? Use a standard
deviation of 9 inches per year.
(i) What would be the z* critical value required to answer the
question? [Select ]
(ii) What is the answer to the question: how many places in Florida
should you survey? [ Select ]](https://content.bartleby.com/qna-images/question/67cd3f4f-dcc4-44d4-83f4-13332296f2a9/880b97c8-fa5c-4a38-af46-a4b46a9b9538/ed9rk8b_thumbnail.png)
Transcribed Image Text:If you wanted to be 99% confident that your estimate of the
average Florida rainfall was within 3 inches of the true average, how
many places in Florida should you survey? Use a standard
deviation of 9 inches per year.
(i) What would be the z* critical value required to answer the
question? [Select ]
(ii) What is the answer to the question: how many places in Florida
should you survey? [ Select ]

Transcribed Image Text:The data for this exercise was obtained from
https://www.currentresults.com/Weather/Florida/yearly-florida-rainfall.php 2 .
Tourists often hear about the wonderful, warm Florida weather; they live in
blissful ignorance of the freezes experienced in the northern parts of the
state. A tourism organization wants to open up the entire state to tourists.
They know that not everyone is drawn to hot, sunny beaches, so they want
to advertise the advantages of visiting other parts of the state. One of the
first things they need to do is educate potential tourists about the weather.
And part of that involves informing them about the average rainfall across
the state. Your task is to help the tourism organization figure out what the
average rainfall in Florida is like. Rainfall data is provided below.
The table below gives the typical yearly rainfall in some parts of Florida.
Place
Rainfall
(inches per year)
Monticello
56.8
Niceville
71.0
Tampa
46.3
Lakeland
54.8
St. Augustine
Lake City
49.0
52.6
50.8
Ocala
Key West
39.8
Hialeah
70.4
Everglades Park, Royal Palm
Tavernier (Key Largo)
55.0
46.0
West Palm Beach
62.3
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