Question

A sample of size 6 is taken from a population with an unknown variance. The sample...

A sample of size 6 is taken from a population with an unknown variance. The sample mean is 603.3 and the sample standard deviation is 189.8. Calculate a 95% confidence interval. What is the upper limit of the interval? Enter your answer to 1 decimal places.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

Here, sample size(n) = 6

sample mean() = 603.3

sample standard deviation(s) = 189.8

Confidence level() = 0.05

The confidence interval is

(- *t/2 , + * t/2 )

Here, /2 = 0.025

t/2;n-1 = 2.571

The 95% confidence interval is

(603.3- * 2.571, 603.3+ * 2.571)

i.e, (385.070588 , 821.529412)

The upper limit of the interval is 821.5 (upto 1 decimal place)

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A sample of size 52 is taken from a population with an unknown variance. The sample...
A sample of size 52 is taken from a population with an unknown variance. The sample mean is 965.3 and the sample standard deviation is 5.5. Calculate a 99.9% confidence interval. What is the upper limit of the interval? Enter your answer to 1 decimal places.  
A random sample of size 15 is taken from a normally distributed population revealed a sample...
A random sample of size 15 is taken from a normally distributed population revealed a sample mean of 75 and a standard deviation of 5. The upper limit of a 95% confidence interval for the population mean would equal?
   A random sample of size 15 taken from a normally distributed population revealed a sample...
   A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25. The upper limit of a 95% confidence interval for the population mean would equal: Group of answer choices 72.727. 77.273. 77.769. 72.231.
A random sample of size 16 taken from a normally distributed population revealed a sample mean...
A random sample of size 16 taken from a normally distributed population revealed a sample mean of 50 and a sample variance of 36. The upper limit of a 95% confidence interval for the population mean would equal: a)57.81 b)53.20 c)69.90 d)75.31
Suppose a random sample of size 11 was taken from a normally distributed population, and the...
Suppose a random sample of size 11 was taken from a normally distributed population, and the sample standard deviation was calculated to be s = 6.5. We'll assume the sample mean is 10 for convenience. a) Calculate the margin of error for a 90% confidence interval for the population mean. Round your response to at least 3 decimal places. Number b) Calculate the margin of error for a 95% confidence interval for the population mean. Round your response to at...
A sample of data is drawn from an unknown population. The sample size is n =...
A sample of data is drawn from an unknown population. The sample size is n = 30, with a mean of 21.4, and sample standard deviation of 7. What is the upper confidence limit (UCL) of the 98% CI?    Round to two decimals and include leading zeros if necessary.
A sample of size 30 is taken from the population of morel mushrooms and used to...
A sample of size 30 is taken from the population of morel mushrooms and used to calculate an average height x ¯ = 4.6 centimeters.. Suppose the sample standard deviation is calculated to be s =0.5. What is the margin of error for a 90% confidence interval? Round your answer to 3 decimal places.
1)Given a sample mean is82, the sample size is 100and the population standard deviation is 20....
1)Given a sample mean is82, the sample size is 100and the population standard deviation is 20. Calculate the margin of error to 2 decimalsfor a 90% confidence level. 2)Given a sample mean is 82, the sample size is 100 and the population standard deviation is 20. Calculate the confidence interval for 90% confidence level. What is the lower limit value to 2 decimals? 3)Given a sample mean is 82, the sample size is 100 and the population standard deviation is...
A random sample of size 17 is taken from a normally distributed population, and a sample...
A random sample of size 17 is taken from a normally distributed population, and a sample variance of 23 is calculated. If we are interested in creating a 95% confidence interval for σ2, the population variance, then: a) What is the appropriate degrees of freedom for the χ2distribution? b) What are the appropriate χ2Rand χ2L values, the right and left Chi-square values? Round your responses to at least 3 decimal places. χ2R= χ2L=
A random sample of size is taken from a population that has a variance of 49....
A random sample of size is taken from a population that has a variance of 49. The sample mean is 90.4, n = 9. Construct a 80% confidence interval for μ. Please show steps
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT