If α = .05 for a two-tailed hypothesis test, how are the boundaries for the critical region determined?     a. Boundaries are drawn so there is 10% (.10) in each tail of the distribution.   b. Boundaries are drawn so there is 5% (.05) in each tail of the distribution.   c. Boundaries are drawn so there is 5% (.05) in the center of the distribution.   d. Boundaries are drawn so there is 2.5% (.025) in each tail of the distribution.

6. A distribution of a variable X has the following characteristics: 1%: 0 25%: 0 50%: 0 75%: 4.75 99%: 11.25 Which of the following best describes the distribution of X? A.) Left-skewed B. Symmetric C. Right-skewed D. Uncertain

You are performing a two-tailed significance test on a proportion and you calculate z-value of2.43. The p-value isa. 0.00375b. 0.0075c. 0.0150d. 0.9925e. 0.9963

You are given the following summary statistics from a sample of 39 observations: (You may find it useful to reference the appropriate table: chi-square table or F table) Mean 76.25 Standard Deviation Skewness 11.25 1.18 Kurtosis 1.77 a. Using the Jarque-Bera test, specify the null and alternative hypotheses to determine whether or not the data are normally distributed. O Hg: S = 0 and K = 0; HA: S+ 0 and K + 0 O Hạ: S = 0 and K = 0; HA: S 0 and K > 0 b-1. Calculate the value of the test statistic. (Round intermediate calculotions to at least 4 decimal places and final answer to 3 decimal places.) Test statistic to search 中 8 近