Refer to the bolt strength problem 17.47. Assume = 6,050 and 5 100. Use the

Refer to the bolt strength problem 17.47. Assume μ = σ 6,050 and 5 100. Use the following 24 individual bolt strength observations to answer the questions posed.

(a) Prepare a histogram and/or normal probability plot for the sample.

(b) Does the sample support the view that yield strength is a normally distributed random variable?

(c) Are the sample mean and standard deviation about where they are expected to be?

Transcribed Image Text:

6,121 6,100 6,007 6,166 6,164 6032 6276 6,151 6,054 5,836 6,024 6,105 6,083 6066 6,09 6,192 6,028 6,087 5,983 60 , 6,054 6,100 5983