A company has 500 employees of them 300 are male and 280 are married. Of the 300 males 190 are married. 1. Dertemine the 95% confidence interval of the difference between percentage of marride female and not married female employees. 2. Test at 1% confidence level if the percentage of married female and not married female employees are different. 3. Calculate the p value associated to question (ii) and state your decision and conclusions at 3% significance level.

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