Claim: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 170 adult males, the mean pulse rate is 70.1 bpm and the standard deviation is 10.5 bpm. Find the value of the test statistic. The value of the test statistic is nothing.
Accepted Solution
A:
Answer:1.3659Step-by-step explanation:Given: The mean pulse rate (in beats per minute) of adult males is equal to 69 bpm. For a random sample of 170 adult males, the mean pulse rate is 70.1 bpm and the standard deviation is 10.5 bpm. To Find: Find the value of the test statistic.Solution:n =170Since sample size is greater than 30 So, we will use z test[tex]\mu = 69[/tex]The mean pulse rate = x= 70.1 bpm Standard deviation= [tex]\sigma=10.5[/tex]n = 170Formula : [tex]z =\frac{x-\mu}{\frac{\sigma}{\sqrt{n}}}[/tex]Substitute the values [tex]z =\frac{70.1-69}{\frac{10.5}{\sqrt{170}}}[/tex][tex]z =1.3659[/tex]Hence the value of the test statistic is 1.3659