QUESTION 12 The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000. A random sample of 64 suppliers is taken from a normal distribution and the mean was found to be R52 000. In testing the hypothesis at 10% significance level that the mean has changed, determine the critical value QUESTION 13 The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000 A random sample of 64 suppliers is taken from a normal distribution and the mean was found to be R52 000, In testing the hypothesis at 10% significance level that the mean has changed, determine the test statistic

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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QUESTION 12
The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000. A random sample of 64 suppliers
is taken from a normal distribution and the mean was found to be R52 000. In testing the hypothesis at 10% significance
level that the mean has changed, determine the critical value.
QUESTION 13
The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000 A random sample of 64 suppliers
is taken from a normal distribution and the mean was found to be R52 000. In testing the hypothesis at 10% significance
level that the mean has changed, determine the test statistic
Transcribed Image Text:QUESTION 12 The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000. A random sample of 64 suppliers is taken from a normal distribution and the mean was found to be R52 000. In testing the hypothesis at 10% significance level that the mean has changed, determine the critical value. QUESTION 13 The mean sales of a medical supplies shops is R50 000 per with a variance of R10 000 A random sample of 64 suppliers is taken from a normal distribution and the mean was found to be R52 000. In testing the hypothesis at 10% significance level that the mean has changed, determine the test statistic
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