STATE: How heavy a load (in pounds) is needed to pull apart pieces of Douglas fir 4 inches long and 1.5 inches square? Data from students doing a laboratory exercise are given. Weight of Load (lbs) 31,860 33,020 30,930 30,170 33,190 32,320 23,040 24,050 lower bound: To access the data, click the link for your preferred software format. CSV Excel (xls) Excel (xlsx) JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI CrunchIt! upper bound: PLAN: We will estimate u by giving a 98% confidence interval. SOLVE: Give a 98% confidence interval for the mean load required to pull apart the wood. Suppose that the strength of pieces of wood like these follows a Normal distribution with standard deviation 3000 pounds. Give your answers to two decimal places. 29112.97 32,590 32,030 32,720 31,300 Incorrect 26,520 30,460 33,650 28,730 Incorrect 33,280 32,700 32,340 31,920

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Chapter 16-22

STATE: How heavy a load (in pounds) is needed to pull apart pieces of Douglas fir 4 inches long and 1.5 inches square? Data
from students doing a laboratory exercise are given.
Weight of Load (lbs)
31,860
33,020
30,930
30,170
lower bound:
33,190
32,320
23,040
24,050
To access the data, click the link for your preferred software format.
CSV Excel (xls) Excel (xlsx) JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI CrunchIt!
upper bound:
29112.97
32,590
32,030
PLAN: We will estimate u by giving a 98% confidence interval.
SOLVE: Give a 98% confidence interval for the mean load required to pull apart the wood. Suppose that the strength of pieces
of wood like these follows a Normal distribution with standard deviation 3000 pounds. Give your answers to two
decimal places.
Incorrect
Incorrect
26,520
30,460
33,650
28,730
32,720
31,300
33,280
32,700
32,340
31,920
Transcribed Image Text:STATE: How heavy a load (in pounds) is needed to pull apart pieces of Douglas fir 4 inches long and 1.5 inches square? Data from students doing a laboratory exercise are given. Weight of Load (lbs) 31,860 33,020 30,930 30,170 lower bound: 33,190 32,320 23,040 24,050 To access the data, click the link for your preferred software format. CSV Excel (xls) Excel (xlsx) JMP Mac-Text Minitab14-18 Minitab18+ PC-Text R SPSS TI CrunchIt! upper bound: 29112.97 32,590 32,030 PLAN: We will estimate u by giving a 98% confidence interval. SOLVE: Give a 98% confidence interval for the mean load required to pull apart the wood. Suppose that the strength of pieces of wood like these follows a Normal distribution with standard deviation 3000 pounds. Give your answers to two decimal places. Incorrect Incorrect 26,520 30,460 33,650 28,730 32,720 31,300 33,280 32,700 32,340 31,920
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