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Stats 151 - Testing a Hypotheses
Fichas del conjunto (11)
- 1how do claims work?there are always two different claims. e.g. an accused is either guilty or not guilty
- 2what is Hothe side of the hypotheses that is assumed correct until disproven
- 3what is Hathe side that has to be proven with evidence
- 4what is the difference between type I and type II errorstype II is more harmful such as letting a murderer go free or marketing a useless drug. type I is less harmful such as putting an innocent man in jail or not marketing a drug that works
- 5how do you test two possible ideas?take the Uo of the two bell curves and see which is closer to the sample mean
- 6the hypotheses is?a claim about the hypotheses
- 7if you are testing if a drug works how do name the sides of the hypothesis?Ho if it has no effect because this side is null. Ha is it works because this is the alternative
- 8what does x bar do in terms of a hypothesis?it deduces if the hypothesis is rejected or accepted
- 9how do u calculate whether to accept or reject a hypothesis using the normal curves?draw the curves labeling then Ho and Ha. then caulculate the differences between Mo and x bar. find Za to find the rejection region and the accepted region and see which section your x value falls in
- 10what are the steps for solving a hypothesis at significance level?first find out what part is the Ho and the Ha. then specify the significance level alpha. find the test statistics and the critical value. calculate test statistics. make the decision or conclusion
- 11how would you test the hypothesis that the diameter of a cylinder is 50 cm?Ho is the diameter is 50. Ha is it is not 50. the percent significance level will be given. use this to find the alpha sections on the graph a/2. calculate for z or t statistics in this case z.
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- Chemistry 101 Stats 151 Fichas sobre Stats 151 - Testing a Hypotheses, creado por jennabarnes12387 el 03/03/2014.
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- jennabarnes12387
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