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Chapter 8: Q.66 (page 481)
Which distribution should you use for this problem ?
The distribution for this problem is.
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Which distribution should you use for this problem?
Suppose we know that a confidence interval is (). Find the error bound and the sample mean.
The data in the Table are the result of a random survey of national flags (with replacement between picks) from various countries. We are interested in finding a confidence interval for the true mean number of colors on a national flag. Let the number of colors on a national flag.
Construct a confidence interval for the true mean number of colors on national flags.
Calculate the following:
a. lower limit
b. upper limit
c. error bound
Why would the error bound change if the confidence level were lowered to?
In words, define the random variables and .
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