1) Suppose x has a mount-shaped distribution with o = 9. A random sample of size 36 has sample mean 20. 16 a) Is it appropriate to use a normal distribution to compute a confidence interval for the population mean u? Explain. S101 to nig b) Find a 95% confidence interval for μ. for a 90% confidence level with maximal margin of erot & = ds of watermelon. ipsib.off Tots to niytem lemixam diw level oonobitnoo čes 101 vison sia siqmse sdt bai I (b BATE 000 c) Explain the meaning of the confidence interval you computed. elow 1000 cm/s (Reference: Hy

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