Four research teams each used a different method to collect data on how fast a new iron skillet rusts. Assume that they all agree on the sample size and the sample mean (in days). Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation.A. Confidence Level: 99.7%; Confidence Interval: 40 to 40
B. Confidence Level: 95%; Confidence Interval: 40 to 50
C. Confidence Level: 68%; Confidence Interval: 43 to 47
D. Confidence Level: 95%; Confidence Interval: 42 to 48
Answers
ConfidenceLevel: 95%; Confidence Interval: 42 to 48. Then the correct option is D.
How to interpret the confidence interval?
Suppose the confidence interval at P% for some parameter's values is given by x ± y.
That means that the parameter's estimated value is P% probable to lie in the interval
[x - y, x + y]
Four research teams each used a different method to collect data on how fast a new iron skillet rusts.
Assume that they all agree on the sample size and the sample mean (in days).
Use the (confidence level; confidence interval) pairs below to select the team that has the smallest sample standard deviation.
Then we have
48 - 42 = 6
Then we have
6/2=3
3 is smallest
Then the correct option is D.
Learn more about confidence intervals here:
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Answer:
D. Confidence Level: 95%; Confidence Interval: 42 to 48
Step-by-step explanation:
48-42=6
6/2=3
3 is smallest
I tested A and got it incorrect so D is the awnser
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Answer:
about 22 percent
Step-by-step explanation:
(3x-4)
(6x-5)
Answers
Answer:
X=21 and Y=121
Step-by-step explanation:
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To solve this problem algebraically we want to add (3x-4) and (6x-5) together so that they equal 180. The reason we do this is that they lie on the same line which is 180°. The equation would look like . We then want to add like terms which will leave us with
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.
B) 1 ≤ ƒ(x) ≤ 6
C) –2 ≤ x ≤ 2
D) –2 ≤ ƒ(x) ≤ 2
Answers
Answer:
Option (C)
Step-by-step explanation:
Domain of a function is represented by the 'x' values on the graph.
Similarly, y-values of a function represents the range.
Therefore, options (B) and (D) will not be the answer as they are representing the function values or y-values.
Given segments starts form x = -2 and ends at x = 2 (Including these points).
Therefore, Domain of the segment will be [-2, 2] Or -2 ≤ x ≤2
Option (C) will be the correct option.
Answer:
B) 1 ≤ ƒ(x) ≤ 6
Step-by-step explanation:
this is the right answer I got it right on usa test prep
Answers
1. You have that 25-foot long board is to be cut into two parts. Then, the first equation is:
a+b=25
2. The longer part is one foot more than twice the shorter part:
a=1+2b
3. The system of equation is:
a+b=25
a=1+2b
4. When you solve it, you obtain:
a=25-b
25-b=1+2b
25-1=2b+b
24/3=b
b=8 ft
a=1+2(8)
a=17 ft
Answers
Answer:
(Y-X), X, Y, (X+Y), (X+Y)+Y, ...
Step-by-step explanation:
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TO GET THE 4RTH AMD 5TH TERM, JUST ADD THE FLLOWING CONSECITIVE TERM AS SHOWN IN THE ANSWER
Answers
Answer:
0
Step-by-step explanation:
Hope this helps