1. Based on the information given below, create a confidence interval with 90% confidence. Explain what this means in a sentence. Null Hypothesis/H0 : μ = 20 Population mean = 20 Alternative Hypothesis/H1: μ ≠ 20 (Two tail) Sample size/ n= 16 Sample mean/ = 21.3 Standard deviation/ = 3 Variance (s2) of 9 Critical Values = -2.1314/2.131 -2.1314 ＜1.73  ; Statistically Significant Cohen’s d  21.3-203 ; 0.43 ; Medium Effect Percentage of Variance r2 = 0.0442

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