I. State the Nul and Alternative hypothesis of the following statement. 1. In a court trial, a suspect is presumed innocent unless proven guilty. 2. The average score of students from section A in...

Answer Problem #3 only.

Extracted text: I. State the Nul and Alternative hypothesis of the following statement. 1. In a court trial, a suspect is presumed innocent unless proven guilty. 2. The average score of students from section A in statistics is 82 %. It is believed that this is higher than the average score of section B students in the same test. 3. The manufacturer of a patent medicine claimed that it was at least 90% effective in relieving pain for a period of 8 hours. A researcher would like to test if the manufacturer's claim is true. 4. A measuring instrument had just been readjusted. The quality control department head, wanting to know if the instrument is really in good condition, got a sample of 50 measurements of the same object. He would only classify the instrument as in good condition if the variability of measurements produced by the machine is a t most 0.5 units. 5. A woman learned about a new slimming program that involved dancing. She invited her friends to join her and they danced together for an hour a day. Of those she had invited, she randomly selected 10 and asked them to give their weights before and after two months of adapting the said program. She wanted to determine if the program was effective by comparing their weights before and after they joined.


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