Question 1182439
This is a one-way t-test
critical value for t is t <-2.413
t=(x bar-mean)/s/sqrt(n)
=(4.9-5.2)/0.5/sqrt(46)
=-0.3*sqrt(46)/0.5
=-4.07
reject Ho. p-value <0.005. It is 0.0002
since the p-value is < the critical value, this means reject Ho.