0 Question 4 B 0/1 pt '0 3 23 98 (D Details Assume that a sample is used to estimate the mean tip earned by a serving staff at a diner. Find the margin of error M.E. that corresponds to a sample of size 13 servers with a mean of $108.36 and a standard deviation of $6.25 at a confidence level of 90%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. ME. = 5:] Tip: Try with the formula, but check your answer with the one - mean app L7\" Submit Question 0 Question 6 B 011 pt '0 3 8 98 (D Details If n=24, 5 = 42, and s=4, find the margin of error at a 90% condence level Give your answer to two decimal places. Submit Question 0 Question 7 l3 0/1 pt '0 3 23 98 G Details In a survey, 12 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of 54. Find the margin of error at a 90% confidence level. Give your answer to two decimal places. Submit Question 0 Question 8 B 0/1 pt '0 3 23 98 G Details If n=27, 93(x-bar)=36, and s=6, construct a confidence interval at a 99% confidence level. Assume the data came from a normally distributed population. Give your answers to one decimal place. 0 Question 13 IE 0/1 pt '0 3 23 98 (D Details Assume that a sample is used to estimate a population mean u. Find the margin of error M.E. that corresponds to a sample of size 15 with a mean of 17.7 and a standard deviation of 17.9 at a confidence level of 99%. Report ME accurate to one decimal place because the sample statistics are presented with this accuracy. ME. = l:] Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Question Help: El Video Submit Question 0 Question 14 a 0/1 pt '0 3 2:3 98 CD Details Assume that a sample is used to estimate a population mean u. Find the 80% confidence interval for a sample of size 65 with a mean of 81.8 and a standard deviation of 19.5. Enter your answer as an open- interval (1'.e., parentheses) accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. 0 Question 15 IE 0/1 pt '0 3 8 99 (D Details Assume that a sample is used to estimate a population mean [1,. Find the 98% confidence interval for a sample of size 315 with a mean of 51.6 and a standard deviation of 15.6. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). CWC] Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Submit Question 0 Question 16 IE 0/1 pt '0 3 23 98 (D Details You intend to estimate a population mean u with the following sample. 67.8 54.6 54.6 51.9 53.5 77.3 71.4 69.7 54.4 52.3 35.4 43.4 You believe the population is normally distributed. Find the 95% confidence interval. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places (because the sample data are reported accurate to one decimal place). Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places. Submit Question Question 17 0/1 pt 9 3 98 0 Details You intend to estimate a population mean / from the following sample. 73.2 71.2 64.1 75.9 51 57.3 57.4 77.5 80.5 70.3 54.2 81.9 59.8 72.1 72.8 63.6 72.9 58.3 70.9 72 71.7 67.3 65.1 51.9 63.9 67.8 71.8 52.4 91.9 73.9 64.8 64.2 69.4 70.3 76.5 68.7 60.5 63.5 78.8 71.9 82.9 70.6 58.6 61.9 69.1 83.3 62.1 65.5 80 77.8 73.1 63.1 68.5 69.1 72.1 60 71 66 61.1 Find the 99.5% confidence interval. Enter your answer as a tri-linear inequality accurate to two decimal places (because the sample data are reported accurate to one decimal place).