For Hypthesis

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Take another example: the annual return of a particular mutual fund is 8%.

Take another example: the annual return of a particular mutual fund is 8%.

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This is our situation, so we use a one-tailed test.

We conclude by stating the results of our hypothesis test.

to be true – the way a defendant in a jury trial is presumed innocent until proven guilty by evidence presented in court.

Similarly, hypothesis testing starts by stating and assuming a “null hypothesis,” and then the process determines whether the assumption is likely to be true or false.

Statistical hypotheses are tested using a four-step process.

The first step is for the analyst to state the two hypotheses so that only one can be right.If the null hypothesis is accepted or the statistical test indicates that the population mean is 12 minutes, then the alternative hypothesis is rejected. The null hypothesis, also known as the conjecture, assumes that any kind of difference or significance you see in a set of data is due to chance.The opposite of the null hypothesis is known as the alternative hypothesis.Therefore, the null hypothesis would be stated as, "The population mean is equal to 12 minutes." Conversely, the alternative hypothesis is the hypothesis that is accepted if the null hypothesis is rejected.Hypothesis testing allows a mathematical model to validate or reject a null hypothesis within a certain confidence level.The null hypothesis attempts to show that no variation exists between variables or that a single variable is no different than its mean.It is presumed to be true until statistical evidence nullifies it for an alternative hypothesis. To truly understand what is going on, we should read through and work through several examples.If we know about the ideas behind hypothesis testing and see an overview of the method, then the next step is to see an example.A simple random statistical sample of 25 people, each of age 17, is selected.The average temperature of the sample is found to be 98.9 degrees.

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    Mathematics and statistics are not for spectators. To truly understand what is going on, we should read through and work through several examples. If we know about the ideas behind hypothesis testing and see an overview of the method, then the next step is to see an example.…

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    The atomic theory has been of priceless value to chemists, but it has more than once happened in the history of science that a hypothesis, after having been useful in the discovery Present and the co-ordination of knowledge, has been aban- position doned and replaced by one more in harmony with later of the discoveries.…

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