A federal report indicated that 58% of children under age 6 lie in poverty  in Puerto Rico, 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 Puerto Rico within 1% with 95% confidence? Round the intermediate calculations to three decimal places and round up your final answer to the next whole number. n=

Q: (d) Find the p-value. (Round to three or more decimal places.) (e) Is there enough evidence to…

A: For the given data P value =? Conclusion =?

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: A recent study indicated that 20% of 133 women over age 55 in the study were widows.  a. How large a…

A:

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: 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: how smart are PHS students? in an attempt to answer this question, you select a random sample of 38…

A: In statistical inference, there are two types of estimation,  Point estimation and Interval…

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

A: From the provided information, 28% of children under age 6 live in poverty in Kentucky that is p =…

Q: A recent study indicated that 22% of the 173 women over age 55 in the study were widows. Round up…

A:

Q: What proportion of students are accepted into Law School? You survey a random sample of 525 Law…

A:

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

A:

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: Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A: It is given that n=763 and x=329.

Q: You however were granted custody of your prized D6 - as you like to rolling a given number is…

A:

Q: b. If the study had found that 51 of the 80 students were working then: ZSTAT =| (Round your answer…

A: Given sample size, n = 80 students population proportion of working = p = 0.48 51 of the 80 students…

Q: A random sample of 354 persons showed that 206 do not have health insurance. Calculate the point…

A: Given data,n=354x=206p=?

Q: (c) Suppose that the researchers wanted to estimate the proportion of patients under 50 years old…

A: Givenx=19n=356Margin of error(E)=0.03p^=xn=19356=0.0534Confidence interval = 95%

Q: Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A: Given that the sample size is n = 763 And number of adults who said that they would travel to outer…

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: Find the p-value. (Round to three or more decimal places.) Can we support the claim that the…

A: We have given that  Sample size n=245 , x= 156  Sample proportion p^=x/ n Population proportion…

Q: 4. Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A: Given: x=329n=763

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: The market share analysis company, Net Applications, monitors and reports on the use of the Internet…

A:

Q: Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A:

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

A:

Q: A random sample of 1027 adults in a certain large country was asked "Do you pretty much think…

A:

Q: In an outbreak of typhoid fever among attendees of an acquaintance party, 99 persons ate spaghetti,…

A: Given that:  n1=99  x1=30 n2=63 x2=20

Q: Travel to Outer Space A CBS News/New York Times poll found that 329 out of 763 randomly selected…

A:

Q: A raffle has a grand prize of a European cruise valued at $13500 with a second prize of a Rocky…

A: Given dataA raffle has a grand prize of $13500with a second prize of $1100if each ticket costs $5…

Q: A sample of patients is tested to determine if they have any hospital borne infections. How large of…

A:

Q: A raffle has a grand prize of a Alaskan cruise valued at $15000 with a second prize of a weekend in…

A:

Q: According to a study, 34% of experienced file-sharers with broadband access had decreased their…

A:

Q: Claim: More than 53% adults would erase all of their personal information online if they could. A…

A:

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: (c) Estimate the proportion of individuals who suffer from sleep apnea who have gum disease with 95%…

A: It is given that Sample size n = 390 Sample proportion = 0.175 The critical value of Z at 95%…

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: For a sample of 12 offenders convicted of weapons violations, the length of prison sentence in…

A: to find mean valuemean = sum of observations/ count of observationsmean = (6 + 6 + 2 + 12 + 36 + 48…

Q: For worker 3, test the research hypothesis that the student is taking, in average, more than 15…

A: The data shows the time taking to solve walk-in problems.

Q: medical researcher says that less than 82% of adults in a certain country think that healthy…

A: Given  p=0.82, n=300, p^=0.78

Q: An inpatient coder in the HIM department is expected to code 400 charts each month. A total of three…

A: Solution: a. From the given information, total number of charts were coded is 1,250 and out of which…

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A:

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

A:

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: The Invisible Gorilla experiment was repeated numerous times. In one experiment, 21 students…

A: (1). It is given that for the invisible gorilla experiment, there are 21 students who are watching…

Q: (a) What proportion of college graduates answered yes when asked if they had ever used online…

A: The assumed CI for the difference in proportions is,     (p^1-p^2)±(Z * SE)where Standard Error…

Q: = (Enter 3 decimal places) z = (Round to 2 decimal places) P-value = (Enter at least 4 decimal…

A: We have given that  Population proportion p = 0.55 Favourable cases, X = 128 Sample size n = 200…

Q: A survey of 2314 adults in a certain large country aged 18 and older conducted by a reputable…

A:

Q: A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung ctancer patients.…

A: Given info: A pharmacist estimates that a chemotherapy drug produces a 75% improvement in lung…

Q: A recent study indicated that 24% of the 150 women over age 55 in the study were widows. Round up…

A: Given That  Margin of error =E =0.02 Population proportion p=24%=0.24 90% confidence interval.

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.