random sample of 50 students was asked to estimate how much money they spent on

Question

random sample of 50 students was asked to estimate how much money they spent on textbooks in a year. The sample skewness of these amounts was found to be 0.93 and the sample kurtosis was 3.72. Test at the 10% level the null hypothesis tat the population distribution or amounts spent is normal. Click the icon to wiew a table of significance points of the Jarque-Bera staistic Determine the null and alternative hypotheses. Choose the correct hypotheses below OA. Ho The population distribution of breakdowns is normal HA The population distribution of breakdowns is Poisson O B. Ho: The population distribution of breakdowns is normal HA The population distribution of breakdowns is not normal. O c. Ho: The population stribution of breakdowns is not normal. HA The population distribution of breakdowns is normal. O D. Ho The population distribution of breakdowns is Poisson HA The population distribution of bre akdowns is normal Calculate the test statistic JB (Round to two decimal places as needed) Determine the significance point significance pointRound to two decimal places as needed) State the conclusion for this test Choose the correct answer below Click to select your answer(o)

Explanation / Answer

H0: The population distribution of breakdowns is normal

Ha: The population distribution of breakdowns is not normal

JB = (n / 6) x [ s2 + (k2 / 4)] Where, JB = Jarque-Bera Test Statistic

n = Size of Sample

s = Skewness

k = Kurtosis Fact

JB = 36.0375

Significance point = 5.679

JB is greater than significance value

So we reject Ho

Option d is correct

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