Please help asap 25 pts
2 answers:
First
Better than solving it, I'll put a graph at the bottom of this answer. First of all it is an absolute value graph.
Remark
All members of that family are shaped like a v with both arms symmetrical about the vertex.
Second
You use the same rule for determining the vertex with an absolute value graph that you would use for a quadratic graph.
if the graph is of the form
y= abs(x + a) Then if a > 0 then the graph moves to the left (contrary to what you might think)
If a < 0 then the graph moves right again contrary to what you might think.
If a = 0 then the graph is on the same line as 0,0 depending on what else is with the absolute value formula.
Answer D <<<<<
Better than solving it, I'll put a graph at the bottom of this answer. First of all it is an absolute value graph.
Remark
All members of that family are shaped like a v with both arms symmetrical about the vertex.
Second
You use the same rule for determining the vertex with an absolute value graph that you would use for a quadratic graph.
if the graph is of the form
y= abs(x + a) Then if a > 0 then the graph moves to the left (contrary to what you might think)
If a < 0 then the graph moves right again contrary to what you might think.
If a = 0 then the graph is on the same line as 0,0 depending on what else is with the absolute value formula.
Answer D <<<<<
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Answer:
The minimum sample size required to construct a 95% confidence interval for the population mean is 65.
Step-by-step explanation:
We are given the following in the question:
Population standard deviation,
We need to construct a 95% confidence interval such that the estimate is within 0.75 milligrams of the population mean.
Thus, the margin of error must me 0.75
Formula for margin of error:
Putting values, we get,
Thus, the minimum sample size required to construct a 95% confidence interval for the population mean is 65.