Prospective drivers who enroll in Smart Driver Driving Schoo

Prospective drivers who enroll in Smart Driver Driving School have always been taught by a conventional teaching method. The driving school has many branches across provinces. Last year, among all students that took driving lessons from the school in a certain province, 80% passed the provincial road test. This year, the teaching committee came up with a new teaching method. The committee randomly assigned half of its 2400 students enrolled this year to receive the conventional teaching method and the remaining half to receive the new teaching method. In a random sample of 100 students who received the conventional teaching method, 75% passed the road test. What is the approximate null model for the sample proportion of the conventional teaching group who passed the road test?

Solution

null hypothesis :The proportion of 1200 students who received the conventional teaching method and subsequently passed the road test this year equals 0.80

here we have population of 1200 as from last year is there are 1200 then 0.80 will pass

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