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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.

Respuesta :

Manetho

Answer:

0.0009

Step-by-step explanation:

[tex]\mu=4[/tex]

[tex]\sigma=0.55[/tex]

n = 8

This is the left tailed test .

The null and alternative hypothesis is ,

[tex]H_0:\mu=4[/tex]

[tex]Ha:\mu <4[/tex]

Test statistic = z=-3.12            from the table.

P(z <-3.12 ) = 0.0009

P-value =0.0009