1. A psychic claims he can predict one year in advance whether a given movie star will win
an Oscar. In the previous five years, he's successfully predicted 75% of the Oscar
winners. Some Hollywood insiders claim he's actually privy to a group that's been rigging
the Oscars, and it's your job to investigate this. Do you think the psychic's predictions are
impressive? Why or why not? How would you go about calculating a P-value for his
record, what kind of data would you need to calculate the value, and how low a P-value
would you need to reject the hypothesis that the psychic's accuracy is due to chance
alone?

Respuesta :

It can be deduced that one has to fail to reject the null hypothesis since the psychic's accuracy is due to chance alone.

What is a hypothesis?

It should be noted that a hypothesis means an educated guess using reasonable thinking about a scientific question.

In this case, the test statistics is given as:

Z = (0.75 - 0.50))(✓0.5 ÷ ✓0.5)/5)

Z = 1.118

Since the p value is given as 0.1318, the difference is not significant. Therefore the rejection of the null hypothesis isn't necessary.

Learn more about hypothesis on:

https://brainly.com/question/606806