It may be assumed that the time patients spend waiting to consult a doctor in a polyclinic is normally distributed. A random sample of 5 observations give the following sample statistics: sample mean = 30 minutes and sample variance - 86. Suppose the population variance is unknown, what is a 95% confidence interval of the population mean μ? O 18.40 s us 32.97 O 18.49 sus 41.51 O 19.55 sus 37.10 O 17.13 sus 42.87

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It may be assumed that the time patients spend waiting to consult a doctor in a polyclinic is normally distributed. A random sample of 5 observations give the following sample statistics: sample mean - 30 minutes and
sample variance = 86. Suppose the population variance is unknown, what is a 95% confidence interval of the population mean μ?
O 18.40 μs 32.97
O 18.49 sus 41.51
O 19.55 sus 37.10
O 17.13 μ ≤ 42.87
Transcribed Image Text:It may be assumed that the time patients spend waiting to consult a doctor in a polyclinic is normally distributed. A random sample of 5 observations give the following sample statistics: sample mean - 30 minutes and sample variance = 86. Suppose the population variance is unknown, what is a 95% confidence interval of the population mean μ? O 18.40 μs 32.97 O 18.49 sus 41.51 O 19.55 sus 37.10 O 17.13 μ ≤ 42.87
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