What percentage of those sampled had high blood pressure? What percentage of those sampled were over 50 and had high blood pressure? Of those subjects with high blood pressure, what percentage were over 50?

Q: You want to determine if the graduation rate of different than the known national graduation rate.…

A: The researcher is interested to determine if the graduation rate of high-school students is…

Q: Reported Versus Measured In a survey of 1046 adults conducted by Bradley Corporation, subjects were…

A: a.Population:A ‘population’ is defined as a set or collection of all the individual persons,…

Q: You want to show someone who watches television 16 hours per day just how “unique” he is. What…

A: To demonstrate how "unique" someone who watches television 16 hours per day is, you can use the…

Q: A group of students were surveyed about the number of siblings they have. The frequencies and…

A: Solution: From the given information, the table of frequencies and relative frequencies of their…

Q: nple of size 9, degrees of freedom is equal to

A: The degrees of freedom can be calculated as:  DF = n-1 Here, n = sample size

Q: If a data set has a higher mean than median, which of the following must be true? The data is skewed…

A: Mean is greater than median

Q: How many degrees of freedom are in a repeated measures study with n=20 participants?

A: Degrees of freedom (DF) state that the number of independent values that can vary in an analysis…

Q: Is the following an observational study or an experiment? Take a random sample of people at a…

A: The given statement is  "take a random sample of people at a fitness center. Ask them if they use…

Q: Canadian teens that use Is there a statistically significant difference between the use of social…

A:

Q: How much difference is there between the mean for the treated sample and the mean for the original…

A: Definition Sample Mean x It is the mean of all the values of a sample.   Population μ It is the mean…

Q: At a Karaoke night, Darren arbitrarily assigned each singer a score from 1 to 5 on how “lively” the…

A: The study, in which the subjects are simply measured for a defined attribute, without having been…

Q: I want a 99% confidence within 2% for the true proportion of bald people in the US.  How many people…

A: Given that, Margin of error E=0.02 Confidence level is 99% Critical value: The two tailed z critical…

Q: A magazine article reported on Springfield School District's magnet school programs. The article…

A:

Q: A rare birth defect occurs in approximately 0.5% of all cases in males. If we sample all the males…

A: Given information: The total number of males born in 2016 in a specific region is N = 200,000. It is…

Q: Which do you think would have more variation: the GPA's of students in an honors college with a…

A: There are two cases: 1. the GPA's of students in an honors college with a prestigious university, 2.…

Q: Health insurance benefits vary by the size of the company (the Henry J. Kaiser Family Foundation…

A: a:For the given data, the chi-square test for association is appropriate.Null Hypothesis:H0: The…

Q: If I have a sample of people’s ages, and the IQR is 20, what does this mean?

A: Given:  IQR for sample of people's ages is 20.

Q: A pharmaceutical company conducts a study where 50 patients are given a drug. They find that 10…

A: Sample is the subset of the population.

Q: 5. Miguel wanted to determine the average length of time students at his school spend each night…

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

Q: The final answer for the test statistic from technology is as follows: Round to 2 decimal places. t…

A: In 1999, the average percentage of women who received prenatal care per country was 80.1%. want to…

Q: Refer to the sample of body temperatures​ (degrees Fahrenheit) in the table below. Given these​…

A: The given table represents the sample of body temperatures (degrees Fahrenheit) and its exposure to…

Q: You are the operations manager for an airline and you are considering a higher fare level for…

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

Q: how importan

A: The five steps to sampling are: Identify the population. Specify a sampling frame. Specify a…

Q: Two random samples are taken, one from among UVA students and the other from among UNC students Both…

A: By using online calculator

Q: You want to estimate the percentage of small incorporated businesses that are owned by women. A…

A: The random variable percentage of small incorporated businesses follows binomial distribution. The…

Q: What mean would put 10% of he sample below it?   u= 450 o= 25 n = 81

A: μ=450,σ=25,n=81

Q: Residents in a city are charged for water usage every three months. The water bill is computed from…

A: INTRODUCTION :   HISTOGRAM: The Histogram is often useful to represent a frequency distribution…

Q: D. What can you conclude about whether there was a significant difference between the scores of the…

A: Given:

Q: Suppose you take a sample of 25 Reese's pieces. The proportion of orange is 0.4. What is the p-value…

A: Solution

Q: You have been hired by a consortium of local car dealers to conduct a survey about the purchases of…

A: Given: Confidence level = 95% Margin of error = 0.03 Formula Used: n = ZαMargin of error2 p(1-p)

Q: Antibiotic is claimed to be effective in 70% of the patients it is given to. If antibiotic is given…

A: probability mass function of B.D is = f ( k ) = ( n  k ) p^k * ( 1- p) ^ n-kwhere       k = number…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.