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#Showyourwork. 1. Suppose that in the latest market reports state that Apple phones account for 46.9% of the mobile phone market in the United States. In an SRS of 350 mobile phone users, 159 own an iPhone. A. p = C. Suppose you wanted to half the standard deviation of 13. What would the sample size have to be? D. Using the original sample of 350, calculate the 90% condence interval for the population proportion, p. E. Suppose you want to test the hypotheses: Ho: p=0.46 Ha: p at 0.46 ii. P-value = iii. Would you reject the null at signicance level, a = 0.05