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Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 7.1 - Problem 33
Get Full Access to Statistics: Informed Decisions Using Data - 5 Edition - Chapter 7.1 - Problem 33

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# ?You Explain It! Birth Weights The birth weights of full-term babies are normally distributed with mean ? = 3400 grams and ? = 505 grams. Source: Based ISBN: 9780134133539 240

## Solution for problem 33 Chapter 7.1

Statistics: Informed Decisions Using Data | 5th Edition

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Problem 33

You Explain It! Birth Weights The birth weights of full-term babies are normally distributed with mean μ = 3400 grams and σ = 505 grams. Source: Based on data obtained from the National Vital Statistics Report, Vol. 48, No. 3

(a) Draw a normal curve with the parameters labeled.

(b) Shade the region that represents the proportion of full-term babies who weigh more than 4410 grams.

(c) Suppose the area under the normal curve to the right of x = 4410 is 0.0228. Provide two interpretations of this result.

Step-by-Step Solution:

Step 1 of 5) Birth Weights The birth weights of full-term babies are normally distributed with mean μ = 3400 grams and σ = 505 grams. Source: Based on data obtained from the National Vital Statistics Report, Vol. 48, No. 3 (a) Draw a normal curve with the parameters labeled. (b) Shade the region that represents the proportion of full-term babies who weigh more than 4410 grams. (c) Suppose the area under the normal curve to the right of x = 4410 is 0.0228. Provide two interpretations of this result. In Other Words Confidence intervals are intervals for the mean of the population. Prediction intervals are intervals for an individual from the population. Construct Confidence Intervals for a Mean Response The structure of a confidence interval is the same as it was in Section 9.1.

Step 2 of 2

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