Chapter 1. The Sampling Distribution of a Difference Between Proportions
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Stat Tutor
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Questions 1-3
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Question 1.1
cSKFru3ZqDucAvfAvWAXp5ab4tJV0dsmyu6A4zOEsW8+TfSTpAIk+YhB94BRvHR30p1cXKanpAUeqBTxkRsKP9Z+iypUqP69a3m13WpUdurCDwVRs47SfJ26fYksh+SntO0bxyEr5SmSjbnFGUC0VR7ATPL8o5c8dik4iZuPdvpPAkiWM8TSe0iexRICUhbyCjlS9FVq+mX4x98rvhIm5ZccT3rMyFS0PetNm1YYFI/ZYgue8h1DYp44jcqxDvMKyrMz2A==Incorrect. p1 - p2 is the mean of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\).
Correct. p1 - p2 is the mean of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\).
Incorrect. Try again.
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Question 1.2
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. \(\sqrt{ \frac{ p_{1}(1- p_{1})}{ n_{1} } + \frac{p_{2}(1- p_{2})}{ n_{2} } } \) is the standard deviation of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\).
Correct. \(\sqrt{ \frac{ p_{1}(1- p_{1})}{ n_{1} } + \frac{p_{2}(1- p_{2})}{ n_{2} } } \) is the standard deviation of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\).
Incorrect. Try again.
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Question 1.3
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Incorrect. The shape of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\) is approximately Normal provided n1p1 \(\geq\) 5, n1(1-p1) \(\geq\) 5, n2p2 \(\geq\) 5, and n2(1-p2) \(\geq\) 5.
Correct. The shape of the sampling distribution of \(\widehat{p}_{1}\) - \(\widehat{p}_{2}\) is approximately Normal provided n1p1 \(\geq\) 5, n1(1-p1) \(\geq\) 5, n2p2 \(\geq\) 5, and n2(1-p2) \(\geq\) 5.
Incorrect. Try again.
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