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givi [52]
3 years ago
15

We wish to study the quality of our production line. We take a random sample of 1000 widgets from our line. A quality rating was

determined for each of the 1000 widgets, and the average quality rating in the sample was 4. The sample standard deviation was 0.5. Also, 6 of the 1000 widgets were found to be defective.
Estimate the average quality rating for widgets from our production line, and include the uncertainty in this estimate in the form, a ± b.
Mathematics
1 answer:
mario62 [17]3 years ago
4 0

Answer:

Average quality rating was 4.54+-0.00549

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Inequalities are used to show the relationship between unequal expressions

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The following should be notated when plotting the graph of an inequality

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So, we have:

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<em>It is not possible for -6 to be less than x and at the same time, x is greater than or equal to -2.</em>

<em />

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So, we have:

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The graph of x > -4 will point to the right, and it will use an open circle

Read more about inequalities at:

brainly.com/question/11612965

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Brilliant_brown [7]

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