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Nookie1986 [14]
3 years ago
10

Please help i’m really confused (10 points)

Mathematics
1 answer:
choli [55]3 years ago
7 0

Answer:

hope this helps

Step-by-step explanation:

The average absolute deviation about any certain point of a data set is the average of the absolute deviations or the positive difference of the given data and that certain value. It is a summary statistic of statistical dispersion or variability.

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A carpenter is making doors that are 20582058 millimeters tall. If the doors are too long they must be trimmed, and if they are
melamori03 [73]

Answer:

Z= 0.253

Z∝/2 = ± 1.96

Step-by-step explanation:

Formulate the null and alternative hypotheses as

H0 : u1= u2 against Ha : u1≠ u2 This is a two sided test

Here ∝= 0.005

For alpha by 2 for a two tailed test Z∝/2 = ± 1.96

Standard deviation = s= 15

n= 10

The test statistic used here is

Z = x- x`/ s/√n

Z= 2058- 2046 / 15 / √10

Z= 0.253

Since the calculated value of Z= 0.253 falls in the critical region we reject the null hypothesis.

There is  evidence at the 0.05 level that the doors are too short and unusable.

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Step-by-step explanation:

6 0
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Answer:

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Step-by-step explanation:

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