Determine the probability of the treatment group's mean being lower than the control group's mean by 15 points or more. Then complete the statements.

The significance level is set at 5%, and the probability of the result is
a) 7.8%
b) 7.7%
c) 9.2%
d) 4.6%
e) 5%
which is
a) the same as
b) less than
c) greater than
the significance level. The result is
a) not statistically significant
b) statistically significant
c) inconclusive

The wheels of a bicycle have a diameter of 70cm. how many meters will the bicycle travel if each wheel makes 50 revolutions

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

What is the value of the expression i 0 × i 1 × i 2 × i 3 × i 4? 1 –1 i –i