Question 13 1 pts The following table gives the results of determining paracetam

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Question 13 1 pts The following table gives the results of determining paracetamol concentration (% m/m) in tablets by two different methods. Five tablets from 5 different batches were analyzed to see whether the results obtained by the two methods differed. Test whether there is a significant difference between the results obtained by two methods in the following table at a 95% confidence interval Batch Method 1 0.2872 0.5773 0.8674 1.1623 1.4559 Method 2 0.2871 0.5760 0.8677 1.1608 1.4565 texp 2.767 tont 2.776 exp «tcrtti with 95% confidence the difference between the measured and the expected result is not significant and the null hypothesis is kept. texp 0.94; terit 2.776 exp tcrtti with 95% confidence the difference between the measured and the expected result is not significant and the null hypothesis is kept. O texp-0.94; tor 2.776 texo > tcrit, with 95% confidence the difference between the measured and the expected result is not significant and the null hypothesis is kept. O texp 2.767 tont 2.776 texo > tcrit, with 95% confidence the difference between the measured and the expected result is not significant and the null hypothesis rejected

Explanation / Answer

Answer b

texp=0.94 : t ctrl = 2.776

texp < t ctrl with 95% confidence the difference between the measured & the expected result is not significant & the null hypothesis is kept

because  the significance level is the probability of rejecting the null hypothesis when it is true. Error of the first kind, a type I error, occurs when the null hypothesis (H0) is true, but is rejected. So if you perform a corresponding hypothesis test while calculating confidence interval, it is correct to say that the significance level is 5% if the confidence level is 95%.

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