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iogann1982 [59]
3 years ago
11

A supervisor records the repair cost for 17 randomly selected VCRs. A sample mean of $68.83 and standard deviation of $12.17 are

subsequently computed. Determine the 80% confidence interval for the mean repair cost for the VCRs. Assume the population is approximately normal.
Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places.
Mathematics
1 answer:
amid [387]3 years ago
5 0

Answer:

27

Step-by-step explanation:

im smart

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Answer:

no, its 11 for the first one and 45 for the second

Step-by-step explanation:

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Which arrangement shows 318 , 3.7, 334 , and 3.89 in order from least to greatest?
Stolb23 [73]

Answer: OPTION D.

Step-by-step explanation:

<h3> The complete exercise is: "Which arrangement shows 3\frac{1}{8}, 3.7, 3\frac{3}{4}, and 3.89 in order from least to greatest?"</h3><h3> </h3>

Convert from mixed numbers to decimal numbers.

The steps to do this, are the following:

1. You must divide the numerator of the fraction by the denominator.

2. Then you must add the quotient obtained to the whole number part.

Applying this procedure, you get that:

3\frac{1}{8}=3+0.125=3.125

3\frac{3}{4}=3+0.75=3.75

Now that you have all the numbers in decimal form, you can order from least to greatest:

3.125,\ 3.7,\ 3.75,\ 3,89

Therefore, you can conclude that the correct arrangement is:

3\frac{1}{8},\ 3.7,\ 3\frac{3}{4},\ 3,89

3 0
3 years ago
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The length of a rectangle is 3/2 units greater than its width. If the width is w, which expression gives the perimeter of the re
faltersainse [42]
W+w+(3/2+w)+(3/2+w)=perimeter
4w+6/2=perimeter
7 0
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each pail of plaster covers 90 square feet of ceiling. What is the least number of pails of plaster you would need to buy to cov
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The area of the ceiling:
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