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Cloud [144]
3 years ago
5

Find the mean absolute deviation (MAD) of the data in the bar chart below. coins

Mathematics
2 answers:
xz_007 [3.2K]3 years ago
7 0

Answer:

The answer is 0.8

Step-by-step explanation:

BabaBlast [244]3 years ago
5 0

Answer: The answer I got was 1.5 and got it right!

Step-by-step explanation:

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The thickness of eight pads designed for use in aircraft engine mounts are measured. The results, in mm, are 41.8, 40.9, 42.1, 4
nika2105 [10]

Answer:

We accept H₀ we don´t have enough evidence to support that the mean thickness is greater than 41 mm

Step-by-step explanation:

Sample Information:

Results:

41.8

40.9

42.1

41.2

40.5

41.1

42.6

40.6

From the table we get:

sample mean :  x  =  41.35

sample standard deviation    s = 0.698

Hypothesis Test:

Null Hypothesis                    H₀                x = 41

Alternative Hypothesis        Hₐ                x > 41

The test is a one-tail test

If significance level is  0.01 and n = 8  we need to use t-student distribution

From t-table  α = 0.01  and degree of freedom  df = n - 1  df = 8 - 1

df = 7    t(c) = 2.998

To calculate t(s)  =  (  x  -  41 ) / s/√n

t(s)  =  (  41.35  -  41 ) / 0.698/√8

t(s)  = 0.35 * 2.83/ 0.698

t(s) = 1.419

Comparing   t(s)  and t(c)

t(s) < t(c)

t(s) is in the acceptance region we accept H₀

7 0
3 years ago
6+9-11:44-223=x<br> lolshhsskzhzhzhxu
nadezda [96]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Please help i will mark brainly
OverLord2011 [107]

The answer:

Is d  have a good day

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Divide and round to the nearest hundredth: 573.1 by 7.22
UkoKoshka [18]
The answer is 79.38!
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It would be the last one to add up to 180 witch is a triangle or supplementary
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