A federal report indicated that 11% of children under age 6 live in poverty in New Hampshire, an increase over previous years. How large a sample is needed to estimate the true proportion of children under age 6 living in poverty in New Hampshire within 3% with 90% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole numb

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Q: Suppose John has a torn tendon and is facing surgery to repair it. The surgeon explains the risks to…

A: Concept of General Addition Rule:For any two events A and B the General Addition Rule state that:

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A: Solution: The 95% confidence interval for the population mean μ is  Lower limit = 9.19 Upper limit =…

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A: Given Data,                   n=514                   x=158

Q: Compute the p-value. Round to three decimal places.

A: Given Information,: We have number of sample n= 2027  Number of favourable x= 485 number of people…

Q: A survey reported that 76% of registered voters in California approved of allowing two people of the…

A: given data   event   A : age 18 to 39 years             B : approved of gay marriage   P(B) = 0.76…

Q: In the past, when elementary school children in a large city were screened, 25% were found to have…

A: Given that the percentage of auditory defects is 25%. Let, p=25%=0.25 Among 200 children, 63 were…

Q: A federal report indicated that 28% of children under age  6 live in poverty in Kentucky, an…

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Q: In the past, when elementary school children in a large city were screened, 25% were found to have…

A:

Q: Compute the test statistic. Round to two decimal places.

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A:

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A: compute sample size ( n ) = n=(Z/E)^2*p*(1-p)

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A: Denote p as the true proportion of readers, who own a laptop. It is reported that 22% of their…

Q: In the past, when elementary school children in a large city were screened, 25% were found to have…

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A: Given,sample proportion(p^)=0.22margin of error(E)=0.04α=1-0.90=0.1α2=0.05z0.05=1.645

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Q: A federal report indicated that 29% of children under age 6 live in poverty in Arkansas, an increase…

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Q: What is the predicted percentage of people without health insurance in 2020? Round your result to…

A: It is required to predict the percentage of people without health insurance in 2020.

Q: A federal report indicated that 29% of children under age 6 live in poverty in Arkansas, an increase…

A: The confidence level is 90%. Therefore, α = 0.10, α/2=0.05 and 1- α/2=0.95. Thus, zα/2 =1.645 (using…

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A:

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A: Given: n= 320 ,x= 160 p= 0.55 ,significance level(∝)= 0.01 p̂= 160 / 320 =0.5

Q: ee decimal places and round up your final answer to the next whole number.

A:

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A: Given: n = 245 x = 106 p = 106/245 = 0.433

Q: How large a sample is needed to estimate the true proportion of children under age 6 living in…

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Q: A federal report indicated that 28% of children under age 6 live in poverty in Kentucky, an increase…

A: Given: The proportion of children under age 6 who live in poverty in Kentucky is p^=0.28. The margin…

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A: Statistical hypothesis testing is an important method in inferential statistics. It is used to test…

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.