I am assuming you want to find the simplest form of the inequality.
1.
2.
3.
1. Start
2. Subtract 9 from each side
3. Divide both sides by 3
Answer:
-True-
Explanation:
the left side
60
is equal to the right side
60
, which means that the given statement is always true.
There is no picture what do you mean
Answer:
Test is Left tailed test
Parameter tested is standard deviation
Step-by-step explanation:
We are given the hypothesis as;
Null hypothesis; H0: σ = 8.6
Alternative hypothesis; H1: σ < 8.6
Where;σ is a constant generally known in statistics as the standard deviation.
Now, it's the alternative hypothesis that will let us know whether this is left tailed, right tailed or two tailed.
Alternative hypothesis says σ < 8.6.
This means that the values of σ that satisfy this hypothesis are less than 8.6 and thus are on the left hand side of 8.6 on a number line. Thus, the shaded region in a normal distribution curve will be on the left.
Thus, it's a left tailed test
