document.write( "Question 625051: Suppose that a pharmacy wants to estimate the standard deviation of the daily demand for a certain drug. It is known that the daily demand for this drug follows an approximately normal distribution. A random sample of 26 days has a sample mean of 125 orders for this drug with a standard deviation of 10 orders. Find a 90% confidence interval for the population standard deviation of the daily demand for this antibiotic.\r
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document.write( "What is the lower limit of the 90% confidence interval?
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document.write( "What is the upper limit of the 90% confidence interval?\r
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document.write( "I'm pretty lost with statistics and am looking for a tutor I can understand, but any help would be appreciated. Thank you in advance! \n" );
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Algebra.Com's Answer #393267 by oscargut(2103)![]() ![]() You can put this solution on YOUR website! Hi, the details are a bit long but i put the answer here\r \n" ); document.write( "\n" ); document.write( "Lower = 122.47\r \n" ); document.write( "\n" ); document.write( "Upper: 127.53\r \n" ); document.write( "\n" ); document.write( "The results are rounded to 2 dp\r \n" ); document.write( "\n" ); document.write( "If you have any doubt or if you have more problems my e-mail is: \r \n" ); document.write( "\n" ); document.write( "mthman@gmail.com \n" ); document.write( " |