Test the claim below about the mean of the differences for a population of paired data at the level of significance . Assume the samples are random anddependent, and the populations are normally distributed.

Claim: d0; =0.10. Samplestatistics: d=1.9, Sd=1.3, n=15

(a) Identify the null hypothesis by writing its complement

(b) Find the test statistic

(c) Find the critical values

(d) Determine whether to reject or fail to reject the null hypothesis