The heights of 82 roller coasters have a mean of 280.7 feet and a population standard deviation of 59.3 feet. Find the standardized tests statistics and the corresponding p-value when the claim is that roller coasters are less than 290 feet tall. Group of answer choices

a. z-test statistic = -0.78, p-value = 0.2181
b. z-test statistic = 0.78, p-value = 0.2181
c. z-test statistic = 0.78, p-value = 0.4361
d. -test statistic = -0.78, p-value = 0.4361

step-by-step explanation: given equation a = h(b 1+b 2)

also we are given values of a, h and b 1 as :

a = 16, h = 4, and b 1 = 3.

in order to solve it for b 2, we need to plug the given values of   a, h and b 1 .

therefore, plugging values of   a, h and b 1   in given equation, we get

16 = 4( 3 + b 2)

first dividing both sides by 4, we get

4 = 3 + b 2

subtracting 3 from both sides, we get

4 -3 = 3 -3 + b 2

1 = b 2.

t

step-by-step explanation:

ever thing time 1 is a multiply by 1 it get