Question 1139996
z=(x-mean)/sd/sqrt(n)
=-0.6*sqrt(46)/8.4, inverting the denominator when dividing puts sqrt(n) in numerator
=-0.48
p-value for z=-0.48 is 0.3140 one way or 0.6280 two way (ANSWER)

Note: to use four decimal accuracy requires the unusual step of using z to four decimal places.  Do on calculator and round only at end. The p-value for all practical purposes is large and 0.62, 0.63 or even 0.64 might be reported and be sufficient.