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laila [671]
3 years ago
6

sample of 64 observations is selected from a normal population. The sample mean is 215, and the population standard deviation is

15. Conduct the following test of hypothesis using the 0.025 significance level. H0: μ ≥ 220 H1: μ < 220 Is this a one- or two-tailed test? One-tailed test Two-tailed test
Mathematics
1 answer:
storchak [24]3 years ago
4 0

Answer: (upside down fancy u) q5

Step-by-step explanation:

Simply apply the law of conservative (upside down fancy u)

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