Mathematics, 05.08.2020 06:01, aaliyah80
The average daily volume of a computer stock in 2011 was ų=35.1 million shares, according to a reliable source. A stock analyst believes that the stock volume in 2014 is different from the 2011 level. Based on a random sample of 30 trading days in 2014, he finds the sample mean to be 32.7 million shares, with a standard deviation of s=14.6 million shares. Test the hypothesis by constructing a 95% confidence interval. Complete a and b A. State the hypothesis B. Construct a 95% confidence interval about the sample mean of stocks traded in 2014.
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then the level of significance is mathematically represented as 
from the normal distribution table 
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The average daily volume of a computer stock in 2011 was ų=35.1 million shares, according to a relia...
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