Answer:
The p-value is;
d. 0.00131
Step-by-step explanation:
The given question parameters are;
Company A Company B
Sample size 80 60
Sample mean $16.75 $16.25
Population standard deviation σ₁ $1.00 σ₂ $0.95
Therefor, we have;
The p-value = 1 - 0.99869 (the area to the right of 3.01) = 0.00131
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➷ r = k/v^2
Substitute the values in:
120 = k/1^2
Multiply both sides by 1^2 to find k
k = 120
Substitute new values in:
r = 120/10^2
Solve:
r = 1.2
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Easy
So %44 of your class students chose pizza.
If you download Photomath this one app it shows you all you gotta do is scan it and it gives you the correct answer and show you how it got it to help you understand
Mean: 175/5 = 35.
Median: 0, 25, 25, 25, 100 - 25 is in the middle.
Mode: 25, it appears the most.
The outlier 100 affects the data, because the number 100 still farthest from the main cluster. (Sorry if this is wrong)