Suppose that Jason recently landed job offers at two companies. Company A reports an average salary of $51,500 with a standard deviation of $2,050. Company B reports an average salary of $46,820 with a standard deviation of $5,755. Assume that salaries at each company are normally distributed. Jason's goal is to secure a position that pays $55,000 per year. What are the z-scores for Jason's desired salary at Company A and Company B? Please round your answers to two decimal places. Company A z: Company B z: At which company is Jason more likely to obtain his desired salary of $55,000 per year? Company B, because the z-score for $55,000 at Company B is greater than the z-score for $55,000 at Company A. O Company A, because the z-score for $55,000 at Company A is greater than the z-score for $55,000 at Company B. O Company B, because the z-score for $55,000 at Company B is less than the z-score for $55,000 at Company A. O Company A, because the z-score for $55,000 at Company A is less than the z-score for $55,000 at Company B.

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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.