A new survey found that out of a random sample of 300 high school students throughout the country who had previously signed up to take the AP Statistics exam, 83% of them still planned on taking the adjusted version. Construct and interpret a 95% confidence interval for the true proportion of all students who still plan on taking their AP Stats exam. Explain what 95% confidence means in the context of this question. The AP exam believes that more than 86% of students will still be taking the exam. What can you say about their claim based on your interval in part (a)?

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A: From the given information we construct 90% and 95% confidence interval.

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A: Given claim: 50% of the parents who had children in grades K-12 were satisfied with the quality of…

Q: A local news outlet reported that 56% of 600 randomly sampled Kansas residents planned to set off…

A: We have given that,  Sample proportion (p̂) = 56% = 0.56 and sample size (n) = 600 Then,  We will…

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A:

Q: A survey of 700 non-fatal accidents showed that 167 involved uninsured drivers. Construct a 99%…

A: Given data,n=700x=167Point estimate isp=xn=167700=0.2386Construct a 99% confidence interval?

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A:

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A:

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A: Given data, n=152 x=101 p=x/n =0.664 The 95% CI is Zc=1.96

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A: Let n=sample size, X=number of Carry disease. p^=x/n  X=167, n=200

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A:

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A:

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A:

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: A recent survey suggests that 52% of Americans say dogs are their favorite animals. If 84 people are…

A: As per honor code, we will only answer first question: 1)  p=0.52 n=84, p^=0.42 Use the formula of…

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A: Given  Several years ago, 43% of parents who had children in grades K-12 were satisfied with the…

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A:

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A:

Q: Cough and Headache At the 98% confidence level, should be nurse inform the managers that their…

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A:

Q: A poll asked whether states should be allowed to conduct random drug tests on elected officials. Of…

A: n = 21410 p^ = 0.72 99% ci for p

Q: A student organization conducted a statistical study to calculate a 95% confidence interval for the…

A: Hence,

Q: Several years ago, 44% of parents who had children in grades K-12 were satisfied with the quality of…

A: We have given that 44% of parents who had children in grades K-12 were satisfied with the quality of…

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A:

Q: You receive a brochure from a large university. The brochure indicates that the mean class size for​…

A: Sample size is, Population mean is Confidence Level is The objective is to test the claim that the…

Q: 90% and​ 95% confidence intervals for the population proportion. Interpret the results and compare…

A: Answer Favorable cases [x] = 1230The sample size [n] = 2105

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.