Claim: The mean systolic blood pressure of all healthy adults is less than 125 mm Hg. Sample data: For 278 healthy adults, the mean systolic blood pressure level is 121.21 mm Hg and the standard deviation is 15.61 mm Hg. Complete parts (a) and (b). a. Express the original claim in symbolic form. Let the parameter represent a value with respect to systolic blood pressure of a healthy adult. (Type an integer or a decimal. Do not round.) b. Identify the null and altemative hypotheses. Ho: H;: (Type integers or decimals. Do not round.)

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