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Complete parts (a) through (c) below. (a) Determine the critical value(s) for a right-tailed test of a population mean at the a = 0.10 level of significance with 15 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the a = 0.10 level of significance based on a sample size of n = 10. (c) Determine the critical value(s) for a two-tailed test of a population mean at the a = 0.01 level of significance based on a sample size of n = 13. Click here to view the t-Distribution Area in Right Tail. - X (a) terit = i t-Distribution Area in Right Tail (b) terit = df - 0.25 0.20 0.15 0.10 0.05 0.025 0.02 0.01 0.005 0.0025 0.001 0.0005 df (c) tcrit = 1 WN 1.000 1.376 1.963 3.078 6.314 12.706 15.894 31.82 63.657 27.321 318.309 36.619 0.816 1.061 1.386 1.886 2.920 4.303 4.849 6.965 9.925 14.089 22.327 31.599 10.215 12.924 0.765 0.978 1.250 1.638 2 353 3.182 3.482 4.541 5.841 7453 0.741 0.941 1.190 1.533 2132 2.776 2.999 3.74 4.604 5.598 7.173 8.610 0.727 0.920 1.156 1.476 2015 2.571 2.757 3.365 4.032 4.773 5.893 6.869 UAWNA 6 0.718 0.906 1.134 1.440 1.943 2.447 2.612 3.143 3.707 4.317 5.208 5.959 0.711 0.896 1.119 1.415 1.895 2.365 2.517 2.998 3.499 4.029 4.785 5.408 8 0.706 0.889 1.108 1.397 1.860 2.306 2.449 2.896 3.355 3.833 4.501 5.041 9 3250 4.297 4.781 9 0.703 0.883 1.100 1.383 1.833 2.262 2.398 2.821 3.690 Enter your 10 0.700 0.879 1.093 2.228 3.581 10 1.372 1.812 2.359 2.764 3.169 4.144 4.587 11 0.697 0.876 1.088 1.363 1.796 2.201 2.328 2.718 3.106 3.497 4.025 4.437 11 3.930 4.318 12 12 0.695 0.873 1.083 1.356 1.782 2.179 2.30 2.681 3.055 3.428 0.694 0.870 1.771 2.160 2.282 2.650 3.012 3.372 3.852 4.221 13 so we look at df = 40 instead.) The 95% confidence interval for H . Type here to search O 994 e O ' ENG DOLL F12 PrtScr Insert F1 F3 F4 F5 F6 F7 F8 F9 F10 F11 . Fr X a % & K 5 7 Q W E R T Y U O P A S D F G H K N. Z X C B N M Alt Ctri Fn Alt + Home