Question

A sample of 8 pieces of data is collected and we wish to perform the level test vs. . The population standard deviation is known to be .55. The sample mean is used to calculate the data z value of . Determine the p-value.

Answer 1

Answer:

0.0009

Step-by-step explanation:

$\mu=4$

$\sigma=0.55$

n = 8

This is the left tailed test .

The null and alternative hypothesis is ,

$H_0:\mu=4$

$Ha:\mu$

Test statistic = z=-3.12            from the table.

P(z <-3.12 ) = 0.0009

P-value =0.0009