Where the population standard deviation is known, the test statistic is determined to be -2.5. What is the p-value for this test?

Question

asked May 9, 2022 136k views

1 Answer

Rafael Mueller · Answer 1 · 2022-05-13T05:30:38+0000

Answer:

P(Z<-2.5) =0.0062097

Explanation:

From the question we are told that:

Test statistic t =-2.5

Generally the equation for Test for statistics is mathematically given by

$t=(\=x-\mu)/((s)/(√(n) ) )$

t=-2.5

Therefore

P-value from Z table is

For left tailed test

P(Z<-2.5) =0.0062097

therefore the P-value for the test is

P(Z<-2.5) =0.0062097