Q2. There is a claim that the average height of the students in a university is 155cm. A researcher thought that it is less than 155cm. For this he selected a random sample of 50 students at that...

Extracted text: Q2. There is a claim that the average height of the students in a university is 155cm. A researcher thought that it is less than 155cm. For this he selected a random sample of 50 students at that university and found that the sample gave mean height 152cm with standard deviation 5 cm. If you are that researcher, give your conclusion about the claim at a = 0.05?