Chapter 8: Q.92 (page 483)
Using the same p′ and level of confidence, suppose that n were increased to 100. Would the error bound become larger
or smaller? How do you know?
Short Answer
The error bound will become smaller.
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Chapter 8: Q.92 (page 483)
Using the same p′ and level of confidence, suppose that n were increased to 100. Would the error bound become larger
or smaller? How do you know?
The error bound will become smaller.
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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.
Calculate the following:
(a)
(b)
(c)
Which distribution should you use for this problem?
In one complete sentence, explain what the interval means.
Which distribution should you use for this problem?
A student polls his school to see if students in the school district are for or against the new legislation regarding school uniforms. She surveys students and finds that are against the new legislation.
a. Compute a % confidence interval for the true percent of students who are against the new legislation, and interpret the confidence interval.
b.In a sample of students,% said they own an iPod and a smartphone. Compute a % confidence interval for the true percent of students who own an iPod and a smartphone.
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