Question: I do not need the explanation, just checking over my answers so you can just list the answers!~ | Companies are trying to reduce sample
I do not need the explanation, just checking over my answers so you can just list the answers!~






| Companies are trying to reduce sample sizes in order to speed decisions and reduce costs. Suppose samples of size 40 are taken instead of samples of size 60. Based on the characteristics of sampling distribution of means. which of the following statement is correct as the sample size decreases? O A. The standard deviation of the sample (8) decreases B The standard deviation of the sampling distribution of means (07) does not change C The standard deviation of the sampling distribution of means (07) decreases D The standard deviation of the population (0') decreases E The standard deviation of the sampling distribution of means (0?) increases size? O A. 12 O B. 139 O C. 10 OD. 98 A manufacturer is interested to develop a 95% confidence interval for the true mean cycle time of producing their headphones. Assuming a margin of error of 1 minute, and standard deviation of 6 minutes from a previous sample, what is the appropriate sample O E. none of the answersdeviation of 36 minutes. Construct a 90% confidence interval for the true mean cycle time. A Six Sigma Black Belt team is conducting a process improvement project to reduce cycle times for producing heart pacemakers. A random sample of n = 36 cycle times were selected. The sample mean cycle time was 74.50 minutes with a sample standard O A. [15.2800 133.7200] O B. [13.6600 135.3400] O C. [66.6640 82.3360] O D. 64.6300 84.3700] O E. [64.3600 84.6400]O A. 306 sample size needed in order to be 99% confident that the sample proportion of meals returned has a margin of error of 0.03. O B. 632 O C. 1844 A franchise owner of a fast food chain wishes to estimate the proportion of meal orders returned by customers as unacceptable. The historical records show that over the past several years, 8 percent of meal orders have been returned. Determine the O D. 1221 O E. 543leve Two confidence intervals are constructed for a population mean. One interval is based on a 90% confidence level and the other is based on a 95% confidence interval. Assuming everything else is the same, the confidence interval based on the 90% confidence O A. IS narrower O B. IS more confident o c. has a larger margin for error O D. has a higher confidence level O E. IS less preciseremoved. What is a 99% confidence interval for the true proportion of passengers forcibly removed? Overbooking is a common problem among air carriers. The proportion of passengers forcibly removed from flights due to overbooking is estimated by taking a sample of passengers. Suppose a random sample of 350 passengers finds 41 passengers forcibly O A. 40.9557 41.0443] O B. none of the answers O c. [0.0951 0.1392] O D. [0.0729 0.1614] O E. 10.1164 0.1179]
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