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Find a 99% confidence interval on the difference in mean number of periods µ1 - µ2. Assume that both population variances are equal. What is the upper bound? Three decimal places

Find a 99% confidence interval on the difference in mean number of periods µ1 - µ2. Assume that both population variances are equal. What is the upper bound? Three decimal places

A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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upper and lower bound pls

An article in Radio Engineering and Electronic Physics (1984, Vol. 29, No. 3, pp. 63–66) investigated the behavior of a stochastic generator in the presence of external noise. The number of periods was measured in a sample of 100 trains for each of two different levels of noise voltage, 100 and 150 mV. For 100 mV, the mean number of periods in a train = 2.6. For 150 mV, the mean was 6.9 with was 7.9 with s s = 2.4. Find a 99% confidence interval on the difference in mean number of periods µ1 - H2. Assume that both population variances are equal. What is the upper bound? Three decimal places
Transcribed Image Text:An article in Radio Engineering and Electronic Physics (1984, Vol. 29, No. 3, pp. 63–66) investigated the behavior of a stochastic generator in the presence of external noise. The number of periods was measured in a sample of 100 trains for each of two different levels of noise voltage, 100 and 150 mV. For 100 mV, the mean number of periods in a train = 2.6. For 150 mV, the mean was 6.9 with was 7.9 with s s = 2.4. Find a 99% confidence interval on the difference in mean number of periods µ1 - H2. Assume that both population variances are equal. What is the upper bound? Three decimal places
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