In: Statistics and Probability
1. Which of the following is a valid alternative hypothesis for a one-sided hypothesis test about a population proportion p?
p = 0.6 |
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p > 0.3 |
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p < 0 |
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p ≠ 0.7 2. Which of the following statements about a confidence interval is NOT true?
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dear student we can provide you with the solution of 4 sub question at a time.
1) option B and C is right
One-tailed hypothesis tests are also known as directional and one-sided tests because you can test for effects in only one direction.
p>0.3
p<0
is right
2) option A is not true
The X% onfidence interval defines a range of values that you can be X% certain contains the population parameter it is not the probability.
3) margin of error for the population proportion confidence interval is
option C is right as will be maximum for 99% confidence and n is less for n = 50
Thus the confidence interval will be widest for C
4) option C is right