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-Dominant- [34]
3 years ago
13

A study was performed to determine whether men and women differ in their repeatability in assembling components on printed circu

it boards. Random samples of 25 men and 21 women were selected, and each subject assembled the units. The two sample standard deviations of assembly time were smen = 0.99 minutes and swomen = 1.01 minutes.
a. Is there evidence to support the claim that men and women differ in repeatability for this assembly task? Use α = 0.02 and state any necessary assumptions about the underlying distribution of the data.
b. Find a 98% confi dence interval on the ratio of the two variances. Provide an interpretation of the interval.
Mathematics
1 answer:
BigorU [14]3 years ago
3 0

Answer:

attached

Step-by-step explanation:

attached

Download docx
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What is 2x+3=-7 for property of equality
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Answer:

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Step-by-step explanation:

2x+3=-7

2x=-7-3

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I think it will be B 610 and 820 but im not sure.
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4 years ago
Which equation has the least steep graph? A. y = x + 6 B. y = -x - 9 C. y = 2x + 1 D. y = -7x - 2
maria [59]

Answer:

A and B.

Step-by-step explanation:

<h3>To get to know the graph with least slope, we have to write all equations in the form <u>y=mx + c. </u></h3>

where m is the slope and c is the the y-intercept.

A. y = x + 6

For this equation m = 1

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For equation B, m = -1

C. y = 2x + 1  

In this equation, m = 2  

D. y = -7x - 2

In equation D, m = -7

The equation with the highest slope is D while the one with the least slope/steep is <em>A and B.</em>

3 0
3 years ago
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There are two solutions because the two functions cross each other twice.
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