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.
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 Ice Chalet offers dozens of different beginning iceskating classes. All of the class names are put into a bucket. The 5 P.M., Monday night, ages 8 to 12, beginning ice-skating class was picked. In that class were 64 girls and 16 boys. Suppose that we are interested in the true proportion of girls, ages 8 to 12, in all beginning ice-skating classes at the Ice Chalet. Assume that the children in the selected class are a random sample of the population.
In words, define the random variable X.
Construct a confidence interval for the population mean time to complete the forms. State the confidence interval, sketch the graph and calculate the error bound.
Which distribution should you use for this problem?
Define the random variable X in words.
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