'A random sample of n 30 is taken from a normally distributed population with a mean of p = 80 and standard deviation of 0 5. Given the sample mean and standard deviation of x= 77 and $ 3.3 respectively. Solve for test statistic:'
Added by Nuria Q.
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H0: μ = 80 The alternative hypothesis (Ha) is that the population mean is less than 80. Ha: μ < 80 Show more…
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