Concept explainers
a.
The appropriate hypotheses for the true proportions of spins are to be explained.
a.
![Check Mark](/static/check-mark.png)
Answer to Problem 50E
The appropriate hypotheses for the true proportions of spins are:
The null hypothesis:
The alternate hypothesis:
Explanation of Solution
Given:
On flipping of the fair coin, there is probability of coin lands on heads is
So, the null hypothesis is given by the following expression:
Exactly opposite to the null hypothesis is stated by the alternate hypothesis:
Or
Conclusion:
Hence, null hypothesis and alternate hypothesis are stated above.
b.
The
b.
![Check Mark](/static/check-mark.png)
Answer to Problem 50E
The
Explanation of Solution
Given:
Concept Used:
The test statistic is calculated by using the following expression:
Where,
Sample proportion:
Calculation:
Firstly need to calculate the sample proportion which is the ratio of the number of successes and the sample size:
The test statistic is calculated by using the following expression:
Put the values from given data in the above eq.
Now the probability value of the
Conclusion:
By using the chi-square subtotals, value of the test-statistics is estimated.
c.
The meaning of the
c.
![Check Mark](/static/check-mark.png)
Answer to Problem 50E
Explanation of Solution
If the
If the
From the answer of above part:
So,
So, it clearly shows that it has enough evidence to claim the competing about the true proportions of spin.
Conclusion:
Hence, the null hypothesis
Chapter 9 Solutions
PRACTICE OF STATISTICS F/AP EXAM
Additional Math Textbook Solutions
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A First Course in Probability (10th Edition)
Elementary Statistics: Picturing the World (7th Edition)
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