Q42Comprehension1 Mark7 Aug 2022
Passage
Suppose a principal states that the students studying in her school have an average IQ score equal to 98.5. A reporter suspects that the average may be lower, possibly 98 and took a sample of 100 random students from the school and observed the average IQ score to be 98.29. Assume the IQ scores of the students are normally distributed with standard deviation 1.2. Based on the above data, answer the given subquestions.
Define null hypothesis and alternative hypothesis.