Question 3 Calculate the single-sided upper bounded 95% confidence interval for the population mean (mu) given...
Calculate the single-sided upper bounded 95% confidence interval for the population mean (mu) given that a sample of size n=12 yields a sample mean of 15.18 and a sample standard deviation of 3.89. Yanıtınız: O mu < 16.76 O mu < 17.67 O mu < 16.21 O mu < 17.20 mu < 16.03 mu < 17.36 mu< 18.92 O mu < 16.87 mu < 17.58 mu< 17.76
Calculate the single-sided upper bounded 99% confidence interval for the population mean (mu) given that a sample of size n=6 yields a sample mean of 14.71 and a sample standard deviation of 3.92. Yanıtınız: mu < 20.10 0 mu<22.24 mu < 19.97 mu<20.32 mu < 16.88 mu < 25,20 mu < 18.17 mu < 15.80 mu < 20.25 mu < 16.80
Question 2 Calculate the two-sided 90% confidence interval for the population mean (mu) given that a sample of size n=13 yields a sample mean of 10.55 and a sample standard deviation of 0.95. Your answer: 10.45 <mu < 10.65 9.93 <mu < 11.17 10.03 <mu < 11.07 O 10.15<mu < 10.95 O 9.93 <mu < 11.17 9.68 <mu < 11.42 O 10.01 <mu < 11.09 10.03 <mu < 11.07 10.19 <mu < 10.91 O 10.08 < mu < 11.02 Clear...
Question 5 Calculate the two-sided 95% confidence interval for the population standard deviation (sigma) given that a sample of size n=10 yields a sample standard deviation of 12.29. Your answer: O 11.64 < sigma <33.17 8.45 < Sigma <22.44 10.63 < Sigma < 15.74 9.29 < Sigma <23.64 5.28 < sigma <29.78 1.08 < sigma <31.24 11.07 < sigma 16.03 12.20 < Sigma 19.97 14,71 < sigma < 10,43 11.30 < sigma < 13.61
and the standard normal table to find a 95% two-sided confidence interval on mean. 3. By using a statistical software, namely MATLAB, the random sample from a normal distribution is generated as given below: 9.11 9.55 10.30 9.39 10.49 10.73 12.77 9.80 7.86 a) (10 Points) Calculate the sample mean and sample variance. b) (10 Points) Find a 95% two-sided confidence interval on mean. Provide a practical interpretation of this interval c) (10 Points) Find a two-sided confidence interval on...
"Find the 95% confidence interval upper limit for the mean when the sample mean is equal to 905, the standard deviation is known to be 227, and the sample size is 6"
Confidence Intervals 9. Construct a 95 % confidence interval for the population mean, . In a random sample of 32 computers, the mean repair cost was $143 with a sample standard deviation of $35 (Section 6.2) Margin of error, E. <με. Confidence Interval: O Suppose you did some research on repair costs for computers and found that the population standard deviation, a,- $35. Use the normal distribution to construct a 95% confidence interval the population mean, u. Compare the results....
In a 95% confidence interval. i 1-0.0s is called the confidence coefficient. A) True lB) False If a 95% confidence interval on the mean has a lower limit of 10 and an upper limit that 95% of the time the true value of the mean is between 10 and 15. ) True B) False For a fixed value of the standard deviation and a fixed sample size, a confidence inte population mean will get longer as the level of confidence...
When planning to construct a 95% confidence interval for a population mean such that it is within one eighth (population) standard deviation from a sample mean, what is the minimum sample size required?
A 95% confidence interval for a population mean goes from 10 to 13. The interval was based on a sample size of 45. The interval was calculated using a known population standard deviation but the value has been lost. What is the population standard deviation?