The top and bottom flanges of a W16 x 50 beam framing into a W8 x 31 column web should be trimmed down to what width if ¾"-diameter high-strength bolts are to be used for all beam-to-column connections?
What will be an ideal response?
2½" on each side = 5"
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Six measurements are taken of the thickness of a piece of 18-gauge sheet metal. The measurements (in mm) are: 1.316, 1.308, 1.321, 1.303, 1.311, and1.310.
a. Make a dotplot of the six values. b. Should the t curve be used to find a 99% confidence interval for the thickness? If so, find the confidence interval. If not, explain why not. c. Six independent measurements are taken of the thickness of another piece of sheet metal. The measurements this time are: 1.317, 1.318, 1.301, 1.307, 1.374, 1.323. Make a dotplot of these values. d. Should the t curve be used to find a 95% confidence interval for the thickness of this metal? If so, find the confidence interval. If not, explain why not.