A smartphone manufacturer is interested in constructing a 98% confidence interval for the proportion of smartphones that break before the warranty expires. 462 of the 1155 randomly selected smartphones broke before the warranty expired. Find the 98% confidence interval. Round answers to 2 decimal places where possible. a. The number of successes, a = b. The sample size, n = c. As a decimal, the probability of success, p'= d. As a decimal, the probability of failure, d'= e. What symbol is the critical value?? f. How much is the critical value? c. v. = g. Find the 98% confidence interval and complete the sentence below. Conclusion: We estimate with a certain percentage confidence that the true proportion of smartphones that break before the warranty expires is between what two bounds? * The percentage is *The two bounds are %. and

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