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Intro Stats / AP Statistics
2 months, 2 weeks ago
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fusion. We are given that mean X bar. That is equal to 39. Standard division sigma is equal to 10 and number of samples and is equal to 16. And confidence in total, We are going to find at 99% confidence level, ci confidence interval. We are going to find at 99 confidence in confidence levels. So value of Value of Jade Alpha at 99 confidence level. That is equal to 2.576. By using the table. Now we are going to find the confidence interval. Meu. So meu will lie between expert minus Z alpha sigma by under root N. And X bar plus that alpha sigma by under root N. So put the values here 39 -2.576 multiply sigma is 10 and the route 16 And here it becomes 39 plus 2.576 multiply 10, divide under route 16 And the route 16 become four and we get 32.56, Meu lies between 32.56 and This becomes 45.44. So this will be the confidence interval
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