Question

please answer questions A-C

Question Help 10.3.1 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 10 degrees of freedom. (b) Determine the critical value(s) for a left-tailed test of a population mean at the a =0.05 level of significance based on a sample size of n= 15. (c) Determine the critical value(s) for a two-tailed test of a population mean at the a =0.10 level of significance based on a sample size of n 14. E Click here to view the t-Distribution Area in Right Tail. te (Round to three decimal places as needed.) (a) tert= e:

Answer 1

  
Solution @ Right tailed dif=to 2=0.10 Critical value=ta, d. f) zi sulirt don t (0.10, 10) = 1:372 tarit = 1.372 left tail n=15 X=0.05 dif=hl = 15-) df=14 Critical value = -t(a, n-1) = -t(0.05,19) = -1.761 Itcrit = -1.761

© Two tailed , 2=0.10 n=14 degree of freedom = n- =14-1 =13 df=13 Critical valuestant) =t(0.) 14-12 ZI =t(0.05,13) = +1.77) critical value = (1.771,-) 77 )