Question

Members of a basketball team suspect the coin used for the coin toss at the beginning of their games is unfair. They believe it turns up heads more often than it should if it were fair. The coach of the team decides to flip the coin 100 times and count the number of heads. Her trial results in 42 heads. She decides to carry out a significance test. What is the p-value she obtains and the general conclusion that can be made at a 90% significance level?

Answer 1

Answer:

The trial provides enough evidence that the probability of obtaining heads is less than 0.50 and that the coin is unfair.

Step-by-step explanation:

The explanation is in the picture

Answer 2

Answer: The answer is D, the p-value is 0.945. She should fail to reject the null.

Step-by-step explanation:

I just took the test and got it correct.