An article in radio engineering and electronic physics (1980, vol. 25, pp. 74-79) 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 was 7.9 with s1 = 2.6. for 150 mv, the mean was 6.9 with s2 = 2.4. use α = 0.01 and assume that each population is normally distributed and the two population variances are equal. (a) it was originally suspected that raising noise voltage would reduce mean number of periods. do the data support this claim? choose the answer from the menu in accordance to the question statementchoose the answer from the menu in accordance to the question statement (b) calculate a confidence interval to answer the question in part (a). μ1−μ2≥enter your answer in accordance to the question statemententer your answer in accordance to the question statement. round your answer to three decimal places
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An article in radio engineering and electronic physics (1980, vol. 25, pp. 74-79) investigated the b...
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