Answer:
Step-by-step explanation:
<u>Solving exponents</u>
- a. 5^-2 = 1/5^2 = 1/25
- b. (3^2)^3/3^8 = 3^6/3^8 = 1/3^2 = 1/9
Answer:
Decision rule for rejecting is
reject H0 is test statistic <-1.233
Step-by-step explanation:
Given that a sample of 1300 computer chips revealed that 27% of the chips do not fail in the first 1000 hours of their use, as against company literature of 29%
To test this we create hypotheses as
(left tailed test at 10% significance level)
p difference = -0.02
STd error of p =
Test statistic = p diff/std error = -0.1587
For 10% significance level for right tailed test we can reject H0 if
test statistic <-1.645
Decision rule for rejecting is
reject H0 is test statistic <-1.233
Answer: 2(3x^2-5x-1) or 6x^2-10x-2
Step-by-step explanation: combine like terms, and then factor by grouping :)