How to State the Null Hypothesis from a Word Problem You’ll be asked to convert a word problem into ahypothesisstatement in statistics that will include a null hypothesis and analternate hypothesis. Breaking your problem into a few small steps makes these problems much easier to handle. How t...
Thenull hypothesisfor the test is that the variances are equal for all samples. In statistics terms, that’s: H0: σ12= σ22= … = σk2. Thealternate hypothesis(the one you’re testing), is that the variances are not equal for one pair or more: H0: σ12≠ σ22≠…≠σk2. ...
The p-value approach to hypothesis testing uses the calculated probability to determine whether there is evidence to reject the null hypothesis. This determination relies heavily on the test statistic, which summarizes the information from the sample relevant to the hypothesis being tested. The null h...
Unicorns Do Exist: A Tutorial on "Proving" the Null Hypothesis Introductory statistics classes teach us that we can never prove the null hypothesis; all we can do is reject or fail to reject it. However, there are time... David,L,Streiner - 《Canadian Journal of Psychiatry》 被引量: 14...
Find the critical chi-square value using a chi-square value table orstatistical software. Determine whether the chi-square value or the critical value is the larger of the two. Reject or accept the null hypothesis. Limitations of a Chi-Square (χ2) Statistic ...
So you need to find the p-value for your hypothesis test. To do so, employ the spreadsheet program Microsoft Excel. Using a simple formula, you can easily determine the p-value for your tests and thereby conclude strong or weak support of the null hypothesis....
(p = 0.041), which leads us to reject the null hypothesis of this test that humility was normally distributed. Listwise deletion was used to handle missing data, yielding a final sample size of 1152. Results were also consistent if multiple imputation with chained equations was used to ...
Money can be tainted when it is associated with direct or indirect harm to others. Deciding whether to accept “dirty money” poses a dilemma because money can be used to help others, but accepting dirty money has moral costs. How people resolve the dile
About Hypothesis Testing The main purpose of statistics is to test a hypothesis. For example, you might run an experiment and find that a certain drug is effective at treating headaches. But if you can’t repeat that experiment, no one will take your results seriously. A good example of ...
State the null hypothesisand thealternate hypothesis(“the claim”). If you aren’t sure how to do this, followthis link for How To State the Null and Alternate Hypothesis. Find thecritical value. When beginning statistics, you usually deal with anormally distributedpopulation, so t...