σ=14.44

sd=4.45

n=35

(a) At the .01 level of significance, is the true mean greater than 10?

z = ( 14.44 - 10 ) / ( 4.45 / √ ( 35 ))

z = 5.902785

The p-value = P( Z > z )

= P( Z > 5.902785 )

= 1.787077e-09

this is what I have so far, am I headed in the right direction....

(b) Use Excel to find the right-tail p-value.

Not sure how to apply this to excel......