Calculate the p-value for the following conditions and determine whether or not

Question

Calculate the p-value for the following conditions and determine whether or not to reject the null hypothesis. a) one-tail (upper) test, z. = 2.02, and a = 0.10 b) one-tail (lower) test, z, = -1.16, and a = 0.05 c) two-tail test, zp = -2.29, and a= 0.05 d) two-tail test, z0 = 1.38, and a= 0.02 Click here to view the first page of the standard normal table. Click here to view the second page of the standard normal table. a) p-value = 0.0217 (Round to four decimal places as needed.) Determine whether or not to reject the null hypothesis. Choose the correct answer below. O A. Reject Ho, since the p-value is less than the significance level a. O B. Do not reject Ho, since the p-value is less than the significance level a. O C. Do not reject Ho, since the p-value is greater than or equal to the significance level a. O D. Reject Ho, since the p-value is greater than or equal to the significance level a.

Explanation / Answer

a) P value = P( z>2.02)

P value = 0.0217

Option A is Correct

b) P value = P(z<-1.16)

P value = 0.1230

Option B is Correct

c) P value = P(z<-2.29)+P(z>2.29)

P value = 0.0220

Option B is Correct

d) P value = P(z<-1.38)+P(z>1.38)

P value = 0.1676

Option A is Correct

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