Please explain null versus alternative hypothesis (statistics hypothesis testing). Which is the pessimistic one?

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orchestra answered 1 year ago

in hypothesis testing if the null hypothesis is rejected -the alternative hypothesis is likely to be...

in hypothesis testing if the null hypothesis is rejected -the alternative hypothesis is likely to be true - no conclusions can be drawn from the test -the data must have been accumulated incorrectly -the sample size has been to small

Give one example of analyses using hypothesis testing framework and identify a null and alternative hypothesis

In hypothesis testing, which hypothesis do we test? Experimental Research Alternative Null As part...

In hypothesis testing, which hypothesis do we test? Experimental Research Alternative Null As part of your research, you have developed the following hypothesis to test: “there will be no association between residents’ socioeconomic status and level of education”. What type of hypothesis is this? One tailed Alternative Directional Two tailed What do we call the situation where we believe there is a genuine effect in our population when in fact there is not? Type II error Type...

Two key concepts in hypothesis testing are the null and the alternative hypothesis. Formulating the hypothesis...

Two key concepts in hypothesis testing are the null and the alternative hypothesis. Formulating the hypothesis test in the right manner, i.e. by correctly formulating null and alternative hypothesis is the first step towards solving the problems in the right manner. How do we represent these concepts tl (i.e. what abbreviation we use to denote null and alternative hypothesis)?

please explain in here what is a (a) hypothesis (b) hypothesis testing (c) null hypothesis (d)...

please explain in here what is a (a) hypothesis (b) hypothesis testing (c) null hypothesis (d) alternative hypothesis and give an example with your explanation.

Please show all work and explain. You are testing the null hypothesis that there is no...

Please show all work and explain. You are testing the null hypothesis that there is no linear relationship between two variables X and Y. From your sample of n = 18, you determine that b1 = +4.5 and Sb1= 1.5. The value of t stat = coefficient/std error = 3. a) At the α = 0.05 level of significance, what are the critical values? b) Based on the information and your answer, what statistical decision should you make?

In hypothesis testing, we can reject a. the null hypothesis. b. the alternative hypothesis. c. both...

In hypothesis testing, we can reject a. the null hypothesis. b. the alternative hypothesis. c. both the null and the alternative hypotheses. d. neither the null and the alternative hypotheses.

For this question, why is a "µ" symbol used in the null and alternative hypothesis versus...

For this question, why is a "µ" symbol used in the null and alternative hypothesis versus a "p"? I'm unsure if the "µ" is correct in my answer. Excel Assignment Samsung manufactures cellphone with an average standby time of 10 hours between charges. The standby time of the cellphone is normally distributed. During the design stage, the quality engineering staff recorded 18 observations of the standby time of the cellphone. Using the observations below, is there evidence that the average...

Hypothesis testing conceptual questions: a. Define the null and alternative hypothesis b. What are the two...

Hypothesis testing conceptual questions: a. Define the null and alternative hypothesis b. What are the two errors that can occur in hypothesis testing? What mathematical symbols are used to denote these errors? c. Define the P-value. How are P-values used in hypothesis testing? d. How is the significance level of a hypothesis test determined? e. What assumptions must your data meet in order to perform a hypothesis test?

a. Which hypothesis, the null or the alternative, is the status-quo hypothesis? Which is the research...

a. Which hypothesis, the null or the alternative, is the status-quo hypothesis? Which is the research hypothesis?

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