random sample of n = 100 measurements of calcium concentration (mg/l) of water is taken from a freshwater lake. A 95% confidence interval for the (population) mean calcium concentration is subsequently found to be 0.49 mg/l to 0.82 mg/l. 1. (a) Would a 90% confidence interval from the same sample be longer or shorter? Explain you response. 2. (b) Whichoneofthefollowingtwostatementsgivesacorrectinterpretationoftheconfidence interval? There is a 95% chance that µ is between 0.49 and 0.82 mg/l. If a new random sample of n = 100 measurements is taken from the lake and the i. ii. 95% confidence interval for µ is computed, and this process is repeated many times, then approximately 95% of the resulting confidence intervals would contain the true (unknown) value of µu. 95% of the estimates from future studies will fall inside the interval 0.49 to 0.82 mg/l. 95% of the n = 100 measures in this data set fall inside the interval 0.49 to 0.82 mg/l. iii. iv.

random sample of n = 100 measurements of calcium concentration (mg/l) of water is taken from a freshwater lake. A 95% confidence interval for the (population) mean calcium concentration is subsequently found to be 0.49 mg/l to 0.82 mg/l. 1. (a) Would a 90% confidence interval from the same sample be longer or shorter? Explain you response. 2. (b) Whichoneofthefollowingtwostatementsgivesacorrectinterpretationoftheconfidence interval? There is a 95% chance that µ is between 0.49 and 0.82 mg/l. If a new random sample of n = 100 measurements is taken from the lake and the i. ii. 95% confidence interval for µ is computed, and this process is repeated many times, then approximately 95% of the resulting confidence intervals would contain the true (unknown) value of µu. 95% of the estimates from future studies will fall inside the interval 0.49 to 0.82 mg/l. 95% of the n = 100 measures in this data set fall inside the interval 0.49 to 0.82 mg/l. iii. iv.

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Description: random sample of n = 100 measurements of calcium concentration (mg/l) of water is taken from afreshwater lake. A 95% confidence interval for the (population) mean calcium concentration issubsequently found to be 0.49 mg/l to 0.82 mg/l.1. (a) Would a

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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