A random sample of n=100 observations produced a mean of x¯=33 with a standard deviation of...
A random sample of n=100 observations produced a mean of x¯=33 with a standard deviation of s=5. Each bound should be rounded to three decimal places.
(a) Find a 95% confidence interval for μ Lower-bound: Upper-bound:
(b) Find a 99% confidence interval for μ Lower-bound: Upper-bound:
(c) Find a 90% confidence interval for μ Lower-bound: Upper-bound:
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A random sample of n=100 observations produced a mean of x¯=33
with a standard deviation of...
A random sample of 86 observations produced a mean x=25.8 and a standard deviation s=2.4. a....
A random sample of 86 observations produced a mean x=25.8 and a standard deviation s=2.4. a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. c. Find a 99% confidence interval for μ. a. The 95% confidence interval is (______,______) Use integers or decimals for any numbers in the expression. Round to two decimal places asneeded.)
A random sample of 92 observations produced a mean x=25.4 and a standard deviation =2.8. a....
A random sample of 92 observations produced a mean x=25.4 and a standard deviation =2.8. a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. c. Find a 99% confidence interval for μ. a. The 95% confidence interval is (____.______) (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed b. The 90% confidence interval is (____.______) (Use integers or decimals for any numbers in the...
A random sample of 86 observations produced a mean x=25.8 and a standard deviation s=2.4. a....
A random sample of 86 observations produced a mean x=25.8 and a standard deviation s=2.4. a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. c. Find a 99% confidence interval for μ. a. The 95% confidence interval is(Use integers or decimals for any numbers in the expression.(____,_____) Round to two decimal places as needed.) b.The 90% confidence interval is(Use integers or decimals for any numbers in the expression(_______,_____). Round to two decimal places...
A random sample of 88 observations produced a mean x = 25.8 and a standard deviation...
A random sample of 88 observations produced a mean x = 25.8 and a standard deviation s = 2.4. a. Find a 95% confidence interval for . b. Find a 90% confidence interval for . c. Find a 99% confidence interval for pl. a. The 95% confidence interval is ( D. (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. The 90% confidence interval is C . (Use integers or decimals...
A random sample of 86 observations produced a mean x 25.4 and a standard deviation s...
A random sample of 86 observations produced a mean x 25.4 and a standard deviation s 2.7 a. Find a 95% confidence interval for b. Find a 90% confidence interval for u c. Find a 99% confidence interval for
A random sample of 92 observations produced a mean x=25.4and a standard deviation s=2.8. . Find...
A random sample of 92 observations produced a mean x=25.4and a standard deviation s=2.8. . Find a 99% confidence interval for μ.(______,______) (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.)
A random sample of 87 observations produced a mean -25.8 and a standard deviations 28 a....
A random sample of 87 observations produced a mean -25.8 and a standard deviations 28 a. Find a 95% confidence interval for b. Find a 90% confidence interval for c. Find a 99% confidence interval for a. The 95% confidence interval is ( DD (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. The 90% confidence intervalis CD (Use integers or decimals for any numbers in the expression. Round to two...
(1 point) A random sample of 100 observations produced a mean of 2 = 32 from...
(1 point) A random sample of 100 observations produced a mean of 2 = 32 from a population with a normal distribution and a standard deviation 4.1. (a) Find a 95% confidence interval for a 25.33 SAS 26.47 (b) Find a 90% confidence interval for 25.48 SHS 26.37 (c) Find a 99% confidence interval for 25.15 SHS 26.65
Please find the confidence interval for a, b, & c. A random sample of 91 observations...
Please find the confidence interval for a, b, & c.
A random sample of 91 observations produced a mean x a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. C. Find a 99% confidence interval for μ. 25.7 and a standard deviation s- 2.4. a. The 95% confidence interval is (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.)
The mean and standard deviation of a random sample of n measurements are equal to 33.4...
The mean and standard deviation of a random sample of n measurements are equal to 33.4 and 3.7 respectively. a. Find a 90% confidence interval for μ if n=121. b. Find a 90% confidence interval for μ if n=484. c. Find the widths of the confidence intervals found in parts a and b. What is the effect on the width of a confidence interval of quadrupling the sample size while holding the confidence coefficient fixed? a. The 90% confidence interval...
A random sample of 88 observations produced a mean x = 25.8 and a standard deviation s = 2.4. a. Find a 95% confidence interval for . b. Find a 90% confidence interval for . c. Find a 99% confidence interval for pl. a. The 95% confidence interval is ( D. (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. The 90% confidence interval is C . (Use integers or decimals...
A random sample of 86 observations produced a mean x 25.4 and a standard deviation s 2.7 a. Find a 95% confidence interval for b. Find a 90% confidence interval for u c. Find a 99% confidence interval for
A random sample of 87 observations produced a mean -25.8 and a standard deviations 28 a. Find a 95% confidence interval for b. Find a 90% confidence interval for c. Find a 99% confidence interval for a. The 95% confidence interval is ( DD (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.) b. The 90% confidence intervalis CD (Use integers or decimals for any numbers in the expression. Round to two...
(1 point) A random sample of 100 observations produced a mean of 2 = 32 from a population with a normal distribution and a standard deviation 4.1. (a) Find a 95% confidence interval for a 25.33 SAS 26.47 (b) Find a 90% confidence interval for 25.48 SHS 26.37 (c) Find a 99% confidence interval for 25.15 SHS 26.65
Please find the confidence interval for a, b, & c.
A random sample of 91 observations produced a mean x a. Find a 95% confidence interval for μ. b. Find a 90% confidence interval for μ. C. Find a 99% confidence interval for μ. 25.7 and a standard deviation s- 2.4. a. The 95% confidence interval is (Use integers or decimals for any numbers in the expression. Round to two decimal places as needed.)
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