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Hypothesis Test with an Unknown Population Standard Deviation In China, the girl/boy birth ratio is 100:114 (46.7%). Suppose you don't believe this reported figure so you conduct a study. In this study, you count the number of girls and boys born in 150 randomly chosen recent births. There are 60 girls and 90 boys born of the 150. Based on your study, do you believe that the percent of girls born in China is, in fact, 46.7%? Assume a 5% significance level. Ho:p = 0.467 Ha:p # 0.467 Useful tools: Normal Distribution Calculator t-Distribution Calculator a. Conduct a hypothesis test and report the p- value. p b. At the 5% significance level, we can reject the null hypothesis (Ho : p = 0.467 ). o True o False