Question

1) In the population IQ, scores are normally distributed with a
mean of 100. A team of scientist wants to test a new medication
to see if it has either positive or negative effect on intelligence
or no effect at all. They take a random sample of 30 participants
who have taken the medication has a mean of 140 with a S.D of
20Did the medication affect the intelligence? Test at 0.05​

Answer 1

Answer:

ʕ•ᴥ•ʔ128248545128248545128248545

Answer 2

Answer:

Hypothesis Testing

critical valuesThe main purpose of statistics is to test a hypothesis. For example, you might run an experiment and find that a certain drug is effective at treating headaches. But if you can’t repeat that experiment, no one will take your results seriously. A good example of this was the cold fusion discovery, which petered into obscurity because no one was able to duplicate the results.