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# Students took n = 35 samples of water from the east basin

ISBN: 9780321923271 41

## Solution for problem 11E Chapter 7.1

Probability and Statistical Inference | 9th Edition

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Problem 11E

PROBLEM 11E

Students took n = 35 samples of water from the east basin of Lake Macatawa (see Example 7.1-4) and measured the amount of sodium in parts per million. For their data, they calculated  and s2 = 24.44. Find an approximate 90% confidence interval for μ, the mean of the amount of sodium in parts per million.

Reference see Example 7.1-4

Let X equal the weight in grams of a “52-gram” snack pack of candies. Assume that the distribution of X is N(μ, 4). A random sample of n = 10 observations of X yielded the following data:

(a) Give a point estimate for μ.

(b) Find the endpoints for a 95% confidence interval for μ.

(c) On the basis of these very limited data, what is the probability that an individual snack pack selected at random is filled with less than 52 grams of candy?

Step-by-Step Solution:
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Data Analysis and Politics “For today’s August 31, 2016 First Class graduate, one word: STATISTICS”-NYT A New Paradigm Today we learned about the importance of the course (cause obviously it wouldn’t be required if it weren’t important)! Some key points: 1. Using...

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##### ISBN: 9780321923271

This textbook survival guide was created for the textbook: Probability and Statistical Inference , edition: 9. Probability and Statistical Inference was written by and is associated to the ISBN: 9780321923271. The answer to “Students took n = 35 samples of water from the east basin of Lake Macatawa (see Example 7.1-4) and measured the amount of sodium in parts per million. For their data, they calculated and s2 = 24.44. Find an approximate 90% confidence interval for ?, the mean of the amount of sodium in parts per million.Reference see Example 7.1-4Let X equal the weight in grams of a “52-gram” snack pack of candies. Assume that the distribution of X is N(?, 4). A random sample of n = 10 observations of X yielded the following data: (a) Give a point estimate for ?.(b) Find the endpoints for a 95% confidence interval for ?.(c) On the basis of these very limited data, what is the probability that an individual snack pack selected at random is filled with less than 52 grams of candy?” is broken down into a number of easy to follow steps, and 141 words. The full step-by-step solution to problem: 11E from chapter: 7.1 was answered by , our top Statistics solution expert on 07/05/17, 04:50AM. Since the solution to 11E from 7.1 chapter was answered, more than 256 students have viewed the full step-by-step answer. This full solution covers the following key subjects: data, pack, snack, see, random. This expansive textbook survival guide covers 59 chapters, and 1476 solutions.

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Students took n = 35 samples of water from the east basin

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