February 20, 2017

Homework Help: math check

Posted by Tom 84 on Tuesday, June 18, 2013 at 7:40pm.

Assume that z is the test statistic. (Give your answers correct to two decimal places.)
(d) Calculate the value of z for Ho: ì = 81, ó = 13.3, n = 51, x = 79.7.
-1.16 is my answer and it is wrong, can someone tell me how I missed this one, done several and got them right but not this one.

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