Simplify: 15 + 10 – 8 – 2 + 3 – 4 – 1
17
15
19
13

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Which one ? is the answer and how to find this answer

Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).