18 years from now, sonja's age will be 4 times her age 9 years ago. Find her present age.
1 answer:
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Answer: A.
Step-by-step explanation:
Null hypothesis : A statement describing population parameters as per the objective of the study. It usually takes "≤,≥,=" signs.
Alternative hypothesis : A statement describing population parameters as per the objective of the study. It usually takes ">, <, ≠" signs.
Let p be the proportion of screens that will be rejected.
12 percent of the screens manufactured using a previous process were rejected at the final inspection.
(i.e. p= 0.12)
Objective of the study = whether the new process<em> reduces </em>the population proportion of screens that will be rejected
i.e. p< 0.12
So, the appropriate hypotheses to investigate whether the new process reduces the population proportion of screens that will be rejected:
Hello!!
For the first equation:
(Solve for y)
For the second equation:
x - y = -2 (Solve for y)
-y = -x - 2
-y = x + 2
Good luck :)
For the first equation:
For the second equation:
x - y = -2 (Solve for y)
-y = -x - 2
-y = x + 2
Good luck :)