Thirty percent of all people inoculated with current flu vaccine contracted the disease within a year. The developer of a new vaccine for the disease wishes to test for significant evidence that the...

Is it b? and how?

thanks

Extracted text: Thirty percent of all people inoculated with current flu vaccine contracted the disease within a year. The developer of a new vaccine for the disease wishes to test for significant evidence that the new vaccine is more effective. Determine the appropriate hypotheses test for the study. Select one: О а. Но : р — 0.3, Н, : р < 0.3="" ob.="" но="" :="" р="" —="" 0.3,="" h,="" :="" р=""> 0.3 О с. Но : р- 0.3, Н, : р 20.3