Arandom sample of n=9 scores is obtained from a population with μ=50 and σ=9. if the sample mean is m=53, what is the z-score corresponding to the sample mean?

The z-score corresponding to the sample mean is 1

Step-by-step explanation:

z-score = (sample mean - population mean) ÷ (sd/√n)

sample mean = 53, population mean = 50, sd = 9, n = 9

z-score = (53 - 50) ÷ (9/√9) = 3÷3 = 1

80%

step-by-step explanation:

c: y > - 1/6x + 1

step-by-step explanation:

dashed line - meaning this < or > also not equal

solid line - meaning this < or > also equal

your answer is c because y > means up & it's shaded up, but y < means down

hope this ! : )