Destiny performs a hypothesis test on a population with µ = 115 and σ = 30. her sample size is 25 with a mean of 120.4. which of the following correctly depicts the z-statistic for this data? a)0.04 b)0.90 c)3.52 d)3.93

z statistic or z score can be calculated using the following formula:

z = (x – u) / (σ / sqrt n)

So simply substitute the given values:

z = (120.4 – 115) / (30 / sqrt 25)

z = 0.90

b. 0.90

The answer choice which correctly depicts the z-statistic for this data is:

This refers to the statistical approach where there is the test of an assumption regarding a population parameter.

The formular for z-statistic is

Therefore, we input the values and we get

z = (120.4 – 115) / (30 / sqrt 25)

We calculate further and we get

z = 0.90

Therefore, the correct answer is option B

REad more about hypothesis test here:
link

i don't know, but that looks pretty bad. my school passed us unless we failed in all the subjects, but idk abt ur school's rules.

copyright potato 2019.

ome people is not even worth it to even try it in the air.

step-by-step explanation: