Question: A random sample of size 21 from a normal distribution has standard deviation s=91. Test H0: sigma=64 versus H1: sigma not=64. Use the 0.10 level

A random sample of size 21 from a normal distribution has standard deviation s=91. Test H0: sigma=64 versus H1: sigma not=64. Use the 0.10 level of significance. Determine whether to reject H0

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