7. Rick's scores in his last 15 rounds of golf are 72, 80, 75, 84, 78, 72, 75, 68, 81, 74.79.70, 77, 83, and 72. If he scores an 80 on each of the next three rounds, which measure of center would increase
more, the mean or median? Justify your answer.

D

Step-by-step explanation:

We are given:

Null hypothesis: H0: μ = 20

Alternative hypothesis: Ha: μ ≠ 20

Population Standard deviation: σ = 5

Sample size: n = 25

Sample mean: x¯ = 17.6

Let's find the z-score from the formula:

z = (x¯ - μ)/(σ/√n)

z = (17.6 - 20)/(5/√5)

z = - 1.073

From online p-value from z-score calculator attached, using z = -1.073. 2 tailed hypothesis significance value of 0.05.

The P-Value is 0.283271.

the answers c

i wish i could u

step-by-step explanation:

i wish i could u