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PSYCHO15rus [73]
3 years ago
13

Customers are considered very satisfied with the XYZ Box video game system if the mean of the population of all satisfaction rat

ings is higher than 50. Assume that the standard deviation of the population of all satisfaction ratings is 4.64.
a. If the population mean of all satisfaction ratings is 50, what is the probability of observing a random sample of 80 satisfaction ratings with a mean greater than or equal to 51.45?

b. We have actually observed a random sample of 80 satisfaction ratings with a mean of 51.45. What do you conclude about whether customers are very satisfied with the XYZ Box video game system?
Mathematics
1 answer:
yKpoI14uk [10]3 years ago
3 0
It is C not( A,B.D ok be home by
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The e vertex of the decagon will be in the top position after rotating it counterclockwise by 3 times the smallest angle of rotation.

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Convert 1.50 micrometers^2 to m^2. Show your solution.
Vadim26 [7]

Here is the solution for the problem:

<span>1m * 1m = 1m² </span><span>
<span>1m = 1,000,000µm = 1 x 10^6µm </span>
<span>1 x 10^6µm * 1 x 10^6µm = 1m² </span>
<span>1x10^12µm² = 1m² (Now, divide both sides by 1x10^12). </span>
<span>1x10^12µm² / (1 x 10^12) = 1m² / (1 x 10^12) </span>
<span>1µm² = 0∙000 000 000 001 m² (x both sides by 1.5). </span>
<span>1.5µm² = 0∙000 000 000 0015 m² </span>
1.5µm² = 1∙5x10^-12 m²</span>

So 1.50 micrometers^2 is equal to 1.5 x 10^-12 m². I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.

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