A simple random sample of size nequals=15 is drawn from a population that is normally distributed. The sample mean is found to be x overbarxequals=31.6 and the sample standard deviation is found to be sequals=6.3. Determine if the population mean is different from 26 at the alpha equals 0.01 level of significance. Complete parts (a) through (d) below. Question content area bottom Part 1 (a) Determine the null and alternative hypotheses. Upper H 0H0: ▼ muμ sigmaσ pp ▼ not equals≠ greater than> less than< equals= 26 Upper H 1H1: ▼ sigmaσ pp muμ ▼ equals= greater than> less than< not equals≠ 26
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H0: μ = 26 H1: μ ≠ 26 Show more…
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