hypothesis testing null hypothesis

The mean score on a standardized test is 100 with a standard deviation of 8. A random sample of 48 scores was found to have a mean of 98. State the null hypothesis and alternative hypothesis. => H o : The mean score = 100, H a : The mean score ≠ 100 or H o..

For what p -value, the null hypothesis is rejected in a hypothesis testing at α = 0.01 for one tailed test. => 0.02 or 0.053 or 0.012 or 0.003..

Choose the correct statement(s). I. "Reject the null hypothesis when it is true", is a type I error. II. "Do not reject the null hypothesis when it is false", is a type II error. III. Probability of a type I error is the level of significance of the test..

In trying to correlate Dalton's atomic theory with Gay Lussac's law of gaseous volume, Berzelius put forward the hypothesis that equal volumes of all gases contain equal number of atoms under similar conditions of temperature. However, it was found that even a fraction of an atom co..

It is accepted that in the population there is a relationship between the experience and level of income. However, in the sample, the statistical analysis indicates that one cannot reject the null hypothesis at 5% level and thus the null hypothesis is accepte..

What type of decision is reached when the test value of the statistic falls in the non critical region, when a false null hypothesis is being tested? => decision cannot be determined from the given information or type I error or correct decision or type II er..

Select the incorrect statement(s). I. If a confidence interval does not include H 0 , then a hypothesis test will reject H 0 . II. If a confidence interval include H 0 , then a hypothesis test will reject H 0 III.For testing H 0 , t distribution is ..

It was proposed by Daniel Koshland in 1959. According to this hypothesis, there is an intermediate condition called transition state between the substrate and the products. It is highly unstable. When the substrate molecules bind to the enzyme molecule, a change is brought about in the a..

In a statistical hypothesis testing, H 0 : μ = 5 and H 1 : μ ≠ 5. For what values of z , at α = 0.02, the null hypothesis (H 0 ) is rejected? => - 2.58 < z < 2.58 or z < - 2.58 or z > 2.58 or - 2.33 < z < 2.33 or z < - 2.33..

The mean score on a standardized test is 100 with a standard deviation of 8. A random sample of 48 scores was found to have a mean of 98. Test at the 0.05 level of confidence and state whether or not to accept the null hypothesis. => The null h..