Suppose at our fishing tournament in question 4.15, 64 fish are randomly se- lected and weighed....
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Suppose at our fishing tournament in question 4.15, 64 fish are randomly se- lected and weighed. Estimate the mean weight of this sample of 64 fish using 95% confidence.
n=64
mu=8.5
SD=.75
Help please!
Homework Answers
n=64,
population mean = 8.5
std deviation = 0.75
at 95 % confidence level
alpha or significance level = 1-0.95 = 0.05
Z alpha/2= Z 0.025 = 1.96
mean weight of sample ranges from
8.5 - 1.96* 0.75/square root(64) to 8.5 + 1.96 * 0.75 / square root(64)
8.5 - 0.18375 to 8.5 + 0.18375
8.31625 to 8.68375
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