2(x - 2.6) + 2.91 = 7.71
1 answer:
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The standard deviation of the sample mean differences is 4.854
<h3>How to determine the standard deviation of the sample mean differences?</h3>The table of values is given as:
<u>Sample Standard deviation</u>
Red box 3.868
Blue box 2.933
The standard deviation of the sample mean differences is calculated using:
This gives
Evaluate the expression
Also, the table of value do not give any information regarding the sample size.
This means that the sample size of the session regarding the number of people would purchase the red box and the blue box are unknown
Hence, the standard deviation of the sample mean differences is 4.854
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The bill will be 18,480 if they are successful.
Step-by-step explanation:
Given,
Current bill of company = 22000
Energy usage to decrease = 16%
Amount of decreased usage = 16% of current bill
Amount of decreased usage =
Amount of decreased usage =
Amount of decreased usage = 3520
Bill after decreased usage = Current bill - Amount of decreased usage
Bill after decreased usage = 22000 - 3520 = 18480
The bill will be 18,480 if they are successful.
Keywords: percentage, subtraction
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