Question

consider a set of data in which the sample mean is 69.8 and the standard deviation is 5.5 calculate the z score given that x= 76.8 .​

Answer 1

Answer:

Formula :

z-score =

(x - μ)

σ

Solution :

z-score =

(76.8 - 69.8)

5.5

=

7

5.5

z-score = 1.2727

p-value from Z-Table :

From the table P(x < x1) = 0.898

P(x > x1) = 1 - P(x < x1)

= 1 - 0.898

P(x > x1) = 0.102

Step-by-step explanation: