Assume that the heights of bookcases are normally distributed. A random sample of 16 bookcases in onecompany have a mean height of 67.5 inches and a standard deviation of 2.1 inches. Construct a 99% confidenceinterval for the population standard deviation, $$\sigma _ { . }$$
A) (1.4, 3.8)
B) (1.5, 3.9)
C) (1.0, 2.6)
D) (1.5, 3.6)

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The Answer of Assume that the heights of bookcases are normally distributed. A random sample of 16 bookcases in onecompany have a mean height of 67.5 inches and a standard deviation of 2.1 inches. Construct a 99% confidenceinterval for the population standard deviation, $$\sigma _ { . }$$
A) (1.4, 3.8)
B) (1.5, 3.9)
C) (1.0, 2.6)
D) (1.5, 3.6)

Assume That the Heights of Bookcases Are Normally Distributed σ.\sigma _ { . }σ.​

Assume That the Heights of Bookcases Are Normally Distributed $\sigma _ { . }$