A federal report indicated that 28% of children under age  6 live in poverty in Kentucky, 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 Kenntucky within 4% with 99% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number.

Q: In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007…

A:

Q: d. Your doctor tells you you are in the 30th percentile for blood pressure among US adults. What is…

A: We have to find score for given percentile.

Q: 4) Predict the acres per fire for a fire occurring in 2025. Is this a reliable prediction? Why or…

A: Note: Hey there! Thank you for the question. As you have particularly mentioned that you need help…

Q: dentify the test statistic. = (Round to two decimal places as needed.)

A: We have given that  Sample size n1=20 , n2=20 Sample means xbar1 =0.44 , xbar2 =0.47 S1 =1.39 ,…

Q: A random sample by the National Institutes of Health included 2253 men to determine the proportion…

A: Given x=986 n=2253

Q: A consumer group is interested in estimating the proportion of packages of ground beef sold at a…

A: Obtain the sample size of a no preliminary estimate for p. The formula of sample size is,   Use…

Q: The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in…

A: GivenLead levels rangin from 47 to 660Minimum value = 47Maximum value = 660Margin of…

Q: A manufacturer of small appliances purchases plastic handles for coffeepots from an outside vendor.…

A:

Q: Sampleton is a small rural village in rural Brazil that has a population of 5,000 with high rates of…

A: total population = 5000 person with disease(A+C)= 5000*25% = 1250 Sensitivity = 0.90

Q: Suppose that the heights of adult men in the United States are normally distributed with a mean of…

A: Given that mean =70,s.d =2.5 p( x>72) =?

Q: Does how long young children remain at the lunch table help predict how much they eat? The table…

A: The independent variable is Time. The dependent variable is Calories. The given data represents…

Q: A federal report indicated that 11% of children under age 6 live in poverty in New Hampshire, an…

A:

Q: Can you statistically put that something is within the 100th percentile? For examlpe a z-score of…

A: 100th percentile means that you have the highest test score possible. 100th percentile means you've…

Q: ne the test statistic. Round to two decimal places as needed.

A: Given:Consider the Community college transfer as first sample and No Transfer as the second sample.…

Q: A federal report indicated that 58% of children under age 6 lie in poverty  in Puerto Rico, an…

A:

Q: A federal report indicated that 17% of children under age 6 live in poverty in Nevada, an increase…

A: Given data, p=17%=0.17 E=2%=0.02 z-value at 99% confidence is Zc=2.576 n=?

Q: A federal report indicated that 13% of children under age 6 live in poverty in Minnesota, an…

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

Q: A report on consumer financial literacy summarized data from a representative sample of 1,669 adult…

A: Given data is appropriate for testing of hypothesis to test z-test for single proportion because it…

Q: The fifth unit of a 25-unit job took 14.5 hours to complete. If a 90 percent learning curve is…

A: Here, total time factor for 90 percent learning curve and unit of 5 is 0.783.                ∑Tn =…

Q: A consumer group is interested in estimating the proportion of packages of ground beef sold at a…

A: Given Information :  A consumer group is interested in estimating the proportion of packages of…

Q: What does the z-score of a data point tell us?

A: The z score is defined as Z = (X - mean)/SD

Q: A federal report indicated that 22% of children under age 6 live in poverty in South Dakota, an…

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

Q: You find out that there were 50 new cases of T1DM reported between January 2014 and January of 2016.…

A:

Q: The results of a recent poll on the preference of teenagers regarding the types of music they listen…

A: Here is given that, two populations and two selected samples. We will use two proportion point…

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A: Note: Since you have asked part C. we will answer the same alone. Given, n=1009 x=521 Sample…

Q: In 2018, the General Social Survey asked a random sample of 1,414 adults "Have you ever been told…

A: a. A random sample of 1,414 adults are taken for a survey to ask question 'Have you ever been told…

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…

Q: A federal report indicated that 11% of children under age 6 live in poverty in New Hampshire, an…

A:

Q: If you want to be 95​% confident of estimating the population proportion to within a sampling error…

A:

Q: A museum claims that one of its skeletons is 9,000 years old. An analysis reveals that the skeleton…

A: Given that, the half-life of carbon-14 is 5,730 years and the skeleton contains 28% of the expected…

Q: If the X-value (raw score) is 52 points above the mean and the corresponding z-score is = 1.84, what…

A: Solution: From the given information, X-value is 52 points above the mean and the z-score is 1.84.

Q: (a) What percent of the SAT verbal scores are less than 650? (b) If 1000 SAT verbal scores are…

A: Given: μ=515, σ=110 The corresponding z-value needed to be computed: The probability that s scores…

Q: This means the test statistic will equal approximately what value

A: It is given that Sample size n = 750 Number of users under the age of 18, X = 51

Q: A random sample of 1028 adults in a certain large country was asked "Do you pretty much think…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

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…

Q: In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007…

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: What is the predicted value for the final grade when a student spends an average of 11 hours each…

A:

Q: A random sample of 1009 adults in a certain large country was asked "Do you pretty much think…

A: Given information Sample size n = 1009 No of adults who thinks televisions are a luxury they could…

Q: In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007…

A: Given : According to a survey conducted by the Consumer Reports National Research Center, 1007…

Q: In the spring of 2017, the Consumer Reports National Research Center conducted a survey of 1,007…

A: Note: Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: The 2017 Chapman University Survey of American Fears asked a random sample of 1207 American adults…

A:

Q: The distance between mutations on a strand of DNA are exponentially distributed with a mean of…

A: Solution: Let X be the distance between mutations on a strand of DNA. From the given information, X…

Q: A poll taken this year asked 1047 adults whether they were fans of a particular sport and 38% said…

A: Given that, Sample size, n = 1047 Probability, p = 38% = 0.38 90% confidence level

Q: Find the test statistic. (Round to two decimal places as needed.)

A: The sample proportion is, p^=xn=219700=0.312857 The sample proportion is 0.312857.

Q: A federal report indicated that 23% of children under age 6 live in poverty in Ohio, an increase…

A: Given that, p = 23% = 0.23 margin of error (E) = 4% =0.04  α=1-0.90=0.10 α2=0.10/2=0.05…

Q: east 3 decimal places

A: Let X be the number of adults who said they would travel to outer space in their lifetime, given the…

Q: A researcher gives a depression scale to 300 people now, 6 weeks later, and 6 months later. She…

A: The depression scale is reliable because it is giving the same mean 6 weeks later and 6 months…

Q: The Bureau of Alcohol, Tobacco, and Firearms (BATF) has been concerned about lead levels in…

A: The range is  Range=maximun-minimum=750-51=699 The approximate standard deviation is given as…

Q: A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults,…

A: