The midpoint of the segment:
(4, 7)
x=4 y= -7
The probability that the sample mean is within 2 standard deviations on the high side and 1 standard deviation on the low side is about 0.8186.
Answer:
I believe it is A. Since the p-value is less than the significance level, you must reject the null hypothesis.
Step-by-step explanation:
Remove parenthesis ; -p^3 -p + 6p^2 + 6p - 7
group like terms : -p^3 + 6p^2 - p +6p - 7
add similar elements : -p^3 + 6p^2 + 5p - 7 (answer)
|-13+2| is 11 and |10+1| is 11, so yes they are equal
