Question 1173381
Ho:means are equal for F and NF
Ha: means are not equal
alpha=0.10 p{reject Ho|Ho true}
test is a 2 sample t
critical value is t(0.95, df=28) is 1.701, reject if |t|>1.701
calculation is t=(difference between means)/sqrt[ (s1^2/n1)+(s2^2/n2)]
=-6/sqrt [(6.17^2/15)+(13.2^2/15)]; denominator=sqrt(14.15)
=-6/3.76
=-1.60
fail to reject Ho; insufficient evidence to say that there is a difference between the means.
p-value=0.13