Directions: Find the best point estimate for the population mean and its standard error for each set of samples. GIVEN SOLUTION 1. Weights in kilograms of 7 Grade 11students 45, 58, 42, 54, 66, 54, 43 population variance - 100 2. Daily allowance of 10 Grade 12 students 100, 70, 120, 150, 80, 75, 100, 50, 85, 100 population variance - 100

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Directions: Find the best point estimate for the population mean and its standard error for each set of
samples.
GIVEN
SOLUTION
1. Weights in kilograms of 7 Grade
11students
45, 58, 42, 54, 66, 54, 43
population variance - 100
2. Daily allowance of 10 Grade 12 students
100, 70, 120, 150, 80,
75, 100, 50, 85, 100
population variance - 100
A manufacturer produces paper that has a mean length of 10 inches and a standard deviation of 0.1. Twenty-five
papers are sampled and measured with a mean paper length of 9.50 in.
QUESTION
SOLUTION
a. What is the best point estimate for
the true mean length of the paper?
b. What is the standard crror of this
point estimate?
c. What is the maximum error of this
point estimate?
d. Construct
interval for the true mean length of
a 95% confidence
paper produced by this company.
Transcribed Image Text:Directions: Find the best point estimate for the population mean and its standard error for each set of samples. GIVEN SOLUTION 1. Weights in kilograms of 7 Grade 11students 45, 58, 42, 54, 66, 54, 43 population variance - 100 2. Daily allowance of 10 Grade 12 students 100, 70, 120, 150, 80, 75, 100, 50, 85, 100 population variance - 100 A manufacturer produces paper that has a mean length of 10 inches and a standard deviation of 0.1. Twenty-five papers are sampled and measured with a mean paper length of 9.50 in. QUESTION SOLUTION a. What is the best point estimate for the true mean length of the paper? b. What is the standard crror of this point estimate? c. What is the maximum error of this point estimate? d. Construct interval for the true mean length of a 95% confidence paper produced by this company.
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