What is the rejection point

Reference no: EM13199412

A random sample of 80 companies who announced corrections to their balance sheets took a mean time of 8.1 days for the time between balance sheet construction and the complete audit. The times were approximately Normal and the standard deviation of all such corrections was known to be 1.3 days. What is the rejection point at α = 0.001 to testHo:μ=8vs. Ha:μ>8?

A) Z > 3.09 B) Z > 1.96 C) Z > 2.575 D) t > 3.197 E) t > 3.195

Reference no: EM13199412

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