recent study reported that the prevalence of hyperlipidemia ( defined as total cholesterol over 200) is 30% in children 2 to 6 years of age. If 12 are analyzed: How many would be expected to meet the criteria for hyperlipidemia?

Q: poll in June 2020 found that 81% of American parents believe that virtual learning instead of…

A: Given data number of success , x= 822.0 sample size, n = 1081 population…

Q: How many females and males of the sample have satisfying non- academic performance inspite of having…

A: Given information: Total population of first-year optometry students from DDC = 65 20% of the sample…

Q: Nationally, the proportion of red cars on the road is 0.12. A statistically-minded fan of the…

A: The following hypothesis can be formed

Q: In a survey of 10,000 IV drug abusers in town A, 1,000 turn out to be infected with hepatitis C and…

A:

Q: In a survey of 1000 adult Americans, 45.4% indicated that they were somewhat interested or very…

A:

Q: low-birth-weight babies graduate from high school by age 20. If 180 ​very-low-birth-weight babies…

A: The expected value can ve calculated as, E(x) =np

Q: In a recent election, 63% of all registered voters participated in voting. In a survey of 275…

A: The percent of participation of voters is equal to: In the given case; when the observation sample…

Q: Of 52 students, it was found that 15 were commuters. If one-quarter of the female students and…

A: Let, x be no of male students y be no of female students Given, x+y=52  -->1 15 were commuters.…

Q: A study claims that the combination of vitamin C with vitamin E is more effective for preventing th…

A:

Q: According to a certain government agency for a large​ country, the proportion of fatal traffic…

A: Solution: Given information: n= 110 Sample size of traffic fatalities x= 49 traffic fatalities…

Q: To test the effectiveness of a new drug designed to relieve flu symptoms, 200 patients were randomly…

A: Given data: Significance level = 0.05 Given claim: The proportion of patients who took the drug was…

Q: 2. A study found that 60 percent of college students say they are housing insecure, while 18 percent…

A: Given

Q: A research report from an independent-measures study states that there are significant differences…

A: The degrees of freedom for treatment (k-1) is 3.

Q: Use the figure to the​ right, which shows the percentages of adults from several countries who favor…

A:

Q: In a certain village 20% of the population is literate, and assume that 150 investigators take a…

A: Given,n=10p=0.2q=1-p=1-0.2=0.8X=no.of literates in the sampleX~Binomial (n=10 , p=0.2)P(X=x)=cxn px…

Q: A local college recently made the news by offering foreign language-speaking dorms to its students.…

A:

Q: In a survey of 1000 adult Americans, 45.9% indicated that they were somewhat interested or very…

A:

Q: A researcher concluded that a patient was in the risk group of developing a rare disease based on…

A: Solution: Here, hypotheses for this test can be written as follows: H0: A patient was NOT in the…

Q: Assume that half the population is vegetarian so that the chance of an individual being a vegetarian…

A:

Q: Results from a survey conducted in a certain grocery store showed that 3 out of 5 people preferred…

A:

Q: kindly assist,   An epidemiologist who is working in Capricorn Department of Health investigated…

A: We have given that  Sample size n =10000 Favorable cases x =275 Sample proportion p^=x/n  =275/10000…

Q: A normal population has a mean of µ = 80 with σ = 20. a. If a single score is randomly selected…

A:

Q: According to a certain government agency for a large country, the proportion of fatal traffic…

A: The sample size is 108, and population proportion is 0.36. Checking condition:…

Q: According to the Pew Research Center,on the propotion of the American population who use only a…

A: A)Verifying the conditions:It is given that, the proportion of the American population who use only…

Q: According to a recent report, 21% of all adults routinely skip breakfast. A researcher believes this…

A:

Q: A hospital has studied its patient history and had concluded that 2% of patients that have been…

A: Given: Proportion of patients infected with staff bacteria = 2100=0.02

Q: Is there a particular acid reflux drug that is more effective? To answer this question, we will use…

A: The test statistic is given below: χ2=∑Oi-Ei2Ei   Here, Oi represents the observed values Ei…

Q: A group of students conducted a study to determine whether women will have higher levels of low…

A: Null Hypothesis: A hypothesis which is tested for plausible rejection is called the Null Hypothesis…

Q: A random study reported that 74% of very-low-birth-weight babies graduate from high school by age…

A: Given that, The probability of very high low birth weight babies graduate from high school by age 20…

Q: A random sample of voters found that 180 out of 320 people were in favor of a gas tax. Election…

A: Given Random sample is 180 out of 320 voters are in support of tax. Total 36000 people voted in…

Q: According to the Pew Research Center,on the propotion of the American population who use only a…

A: Solution:Part(D):Finding the test statistic value for the hypothesis test for…

Q: The National Institute of Mental Health published an article stating that in any one-year period,…

A: The hypotheses can be constructed as: Null hypothesis: H0: p = 0.095 Alternative hypothesis: H1: p…

Q: In a clinical trial of 734 subjects treated with medicine A, 29 reported headaches. In a control…

A: To calculate: The risk ratio

Q: The manufacturer of a new racecar engine claims that the proportion of engine failures due to…

A: Given   Population 1 Population 2 Sample size 165 145 Sample portion 18 12…

Q: if a person is dealt 13 cards from an ordinary deck of 52 playing cards several times, how many…

A:

Q: An organization published an article stating that in any one-year period, approximately 8.2 percent…

A: Proportion z_test: If the given sample size is more than 30 or Population standard deviation is…

Q: Is there a particular acid reflux drug that is more effective? To answer this question, we will use…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: In a survey of 1150 adult males, 805 said they use the Internet. In a survey of 1050 females, 746…

A:

Q: A hospital has studied its patient history and had concluded that 2% of patients that have been…

A: Given: 2% of patients have been admitted with staff bacteria.

Q: In a study reported in the July 2007 issue of the Journal of Epidemiology and Community Health,…

A: The total number of veterans followed is 104000.The number of veterans committed suicide is…

Q: In a random sample of 1022 U.S. adults, 480 think that the U.S. government is doing too little to…

A: Hypotheses:   Here p1 and p2 be the two proportions. The aim is to check whether p1= p2. The null…

Q: A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant.…

A: Let A denote event that employee suffers lost-time accidents during the last year. Let B denote…

Q: Suppose the prevalence of "dance fever" at a college is 40% among women and 10% among men. If there…

A: Given that the prevalence of dance fever among women is 40%. The prevalence of dance fever among men…

Q: At any age, about 20% of American adults participate in physical conditioning activities at least…

A:

Q: n a survey of 1000 adult Americans, 45.7% indicated that they were somewhat interested or very…

A: Solution: Given information: n= 1000  Sample size  p^= 0.457  Sample proportion p= 0.50 Population…

Q: 2006 Statistical Abstract of the United States reports on a survey that asked a national sample of…

A: From the given information we find the 95%

Q: or a population with μ  = 80 and σ = 10,the z-score corresponding to X = 85 would be?

A: The z-score tells  number of standard deviation a value is above or below from the mean. If the…

Q: Among college students, the proportion p who say they’re interested in their congressional…

A:

Q: In a sample of 88 children selected randomly from one town, it is found that 8 of them suffer from…

A: Given information- Sample size, n = 88 It is found that 8 of them suffer from asthma. So, x = 8 So…

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.