Answer Happy

A simple random sample of size n is drawn from a population that is normally distributed. The sample mean, Is found to be 114 and the sample standard deviation, s, is found to be 10 (a) Construct a 90% confidence interval about if the sample size, n, is 24 (b) Construct a 90% confidence interval about if the sample size, n, is 18 (c) Construct an 80% confidence interval about if the sample size, n, is 24. (d) Could we have computed the confidence intervals in parts (a)-(e) if the population had not been normally distributed? Click the icon to view the table of areas under the t-distribution n P (a) Construct a 90% confidence interval about us if the sample size, n, is 24 Lower bound: Upper bound I (Use ascending order. Round to one decimal place as needed.)

op MyStatLab Data Set My StatCrunch Graph Help Var7 vars 0.1 3.078 1.886 1.638 1.533 1.476 1.44 1.415 1.397 1.383 ch StatCrunch Applets Edit Data Stat Row I-Distribution var2 var3 1 df 0.25 0.2 1 2 ti 1 1.376 3 2 0.816 1.061 4 3 0.765 0.978 5 4 ni 0.741 0.941 6 5 0.727 0.92 7 ng 6 0.718 0.906 8 7 0.711 0.896 ri 9 8 0.706 0.889 10 9 0.703 0.883 ir 11 10 0.7 0.879 12 11 0.697 0.876 . 13 12 0.695 0.873 14 13 0.694 0.87 15 14 0.692 0.868 16 15 0.691 0.866 TH 17 16 0.69 0.865 18 17 0.689 0.863 tr 19 18 0.688 0.862 20 19 0.688 0.861 21 20 0.687 0.86 22 21 0.686 0.859 23 22 0.686 0.858 24 23 EH 0.685 0.858 24 0.685 157 3-606825990&back-DoAssignments asp%3Fview%3Dtest&qud var4 0.15 1.963 1.386 1.25 1.19 1.156 1.134 1.119 1.108 1.1 1.093 1.088 1.083 1.079 1.076 1.074 1.071 1.069 1.067 1.066 1.064 1.063 1.061 1,06 15 1.372 1.363 1.356 1.35 1.345 1.341 1.337 1.333 1.33 1.328 1.325 1.323 1.321 1.319 US var6 0.05 6.314 2.92 2.353 2.132 2.015 1.943 1.895 1.86 1.833 1.812 1.796 1.782 1.771 1.761 1.753 1.746 1.74 1.734 1.729 1.725 1.721 1.717 1.714 111 0.025 12.706 4.303 3.182 2.776 2.571 2.447 2.365 2.306 2.262 2.228 2.201 2.179 2.16 2.145 2.131 2.12 2.11 2.101 2.093 2.086 2.08 2.074 2.069 na var 8 0.01 15.894 4.849 3.482 2.999 2.757 2.612 2.517 2.449 2.398 2.359 2.328 2.303 2.282 2.264 2.249 2.235 2.224 2.214 2.205 2.197 2.189 2.183 2.177