36+28 because 4(9+7) = 64 and to get this answer you do 4*9 + 4*7 = 36 + 28 = 64
A trapezoid has one pair of parallel lines where a parallelogram has 2.
That's a hard one. I'm trying to figure it out
The probability would be 9/12 and simplifies it you would divide both numbers by 4 and you get 3/4 as your answer
The hypothesis testing for this problem is:
a. The hypothesis for this problem are:
Null: H0: μ=6
Alternative: Ha: μ≠6
b. Test
T-statistics = (6.08 - 6) / 0.44* √(121) = 2
c. P value = 0.047759
Since our p-value is smaller than the significant level of 0.05, we can say that we reject the null hypothesis.
Conclusion: there is enough evidence to say lathe is not in perfect adjustment.