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lys-0071 [83]
3 years ago
7

A random sample of 81 automobiles traveling on a section of an interstate showed an average speed of 60 mph. The distribution of

speeds of all cars on this section of highway is normally distributed, with a standard deviation of 13.5 mph. Refer to Exhibit A. If we are interested in determining an interval estimate for μ at 86.9% confidence, the z value to use is _____.
a. 1.96
b. 1.31
c. 1.51
d. 2.00
Business
1 answer:
rjkz [21]3 years ago
4 0

Answer:

so correct option is c. 1.51

Explanation:

given data

random sample n = 81

average speed x = 60 mph

standard deviation σ = 13.5 mph

interval estimate  μ =  86.9%

to find out

the value of the z

solution

we have given  μ =  86.9%

so we get here z critical value for the confidence level =  86.9 %

we will use here standard normal table

so z value for 86.9% is 1.51

so correct option is c. 1.51

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Answer:

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You are the manager of a retail store. You believe the economy is in a recession and that sales for the month will be unusually
Naya [18.7K]

Explanation:

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This type of behavior has as main characteristics the expression of your ideas, needs and feelings to the detriment of those of other people, this can be seen in the question in the excerpt that says that the manager made an important decision for the business without consulting his superiors because you believe they feel the same way about the economy as you do.

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6 0
3 years ago
according to the text, superior performance within the strategic business unit (sbu) is sought by asking which major question?
EastWind [94]

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The definition of a superior is a person who is better in diploma, rank, numbers, etc. than others. An example of a superior is the supervisor of an enterprise. advanced comes from the Latin phrase which means above and it literally way something that is above others in best or reputation.

Superior means better or greater in value. An instance of advanced users as an adjective is an advanced manager which means a supervisor whose abilities have been evaluated as fantastic. An instance of advanced users as an adjective is a superior grade of 100% on an exam. (printing) Set above the primary line of a kind. you use superior to explain someone or something that is better than different comparable humans or matters. Your superior in an agency that you work for is a person who has a higher rank than you. They do now not have a lot communique with their superiors.

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3 0
1 year ago
If the midlands pencil corporation has issued several different debt securities, an investor would expect the lowest income stre
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Answer:

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