Prism's reports a different resuts for the Shapiro-Wilk normality than another program.

Prism, since version 4.01 and 4.0b,  can perform a Shapiro-Wilk normality test as part of the column statistics analysis. With large samples, the results do not always match those of other programs. The reason is that a published algorithm for this test was inaccurate when the sample size exceeded 50. Prism now uses an updated, more accurate, algorithm: 

1. P. Royston, Remark AS R94: A Remark on Algorithm AS 181: The W-test for Normality, Journal of the Royal Statistical Society. Series C (Applied Statistics), Vol. 44, No. 4 (1995), pp. 547-551