Introductory Statistics for the Sciences Test 2 1. A health economist established a study to assess utilization of emergency medical care and health insurance. Five percent of all adults have utilized emergency medical care within the past 12 months. For the patients who utilized emergency medical care, 80 percent had health insurance, while for a random sample of persons who never utilized emergency medical care, 55 percent had health insurance. What is the probability that a randomly selected adult has no health insurance?

Q: A brand manager for a soft drink firm is doing competitive analysis on marketing communications…

A: Let A1, A2, A3, A4 be the events representing Television, Radio, Magazines ,Newspapers respectively,…

Q: Baslc 4.10 A die is rolled two times. Provide a list of the possible outcomes of the two rolls in…

A: a) The outcomes for each of the die is {1, 2, 3, 4, 5, 6}.

Q: 5. Is lack of sleep causing traffic fatalities? A study conducted under the auspices of the National…

A: From the provided information, Mean (µ) = 1550 Standard deviation (σ) = 300 X~N (1550, 300)

Q: A study was conducted to investigate the relationship between the color of the helmet worn by…

A:

Q: 4. Sampling Probability Assume that 53% of Americans believe that the pandemic will end by…

A: Note: As per the instructions, solving first three subparts. Kindly repost the remaining questions…

Q: 4. COMPUTER CHIPS. For a certain type of computer chip, the proportion of chips that are defective…

A: 4 a. Consider, np=200*0.10=20>10n(1-p)=200*0.90=180>10 Here, the conditions np>10 and…

Q: 25) The National Cancer Institute (NCI) compiles U.S. epidemiology data for a number of cancers. The…

A: To solve this problem, we can use Bayes' theorem. Let's define the events:A: Woman has breast…

Q: A survey of top executives revealed that 29% of them regularly read Time magazine, 22% read…

A: The answer is attached below,

Q: . In a poll of 124 Oxnard College students, 62 said their favorite basketball team was the Golden…

A: Answer  Correct answer is  83.1%

Q: At a major credit card bank, the percentages of people who historically apply for the Silver, Gold…

A: Formulae : 1) Expected value = N*Pi  , where n is sample size.   2) Chi-square test statistic : χ2…

Q: Español A decade-old study found that the proportion, p, of high school seniors who believed that…

A: Given : Hypotheses test is a two tailed test test statistic, z = -2.951

Q: 4. Suppose that the Oxnard College softball team has a 50% probability of winning every game they…

A: Given that, Probability of winning every game = 50% = 0.50Sample size , n =3

Q: Between May 3, 2009 and June 2, 2012, 54% of Kickstarter pitches were unsuccessful. What is the…

A: Introduction: Denote p as the true population proportion of projects that were unsuccessful. Since…

Q: 13. According to a those polled ranked jobs or health care as the top domestic priority. What /CBS…

A: Suppose A is the event that people rank job or health care as the top domestic priority. Since 78%…

Q: a. Create a probability model for the random variable X = cost of claims. b. What is the long-term…

A: Note: Here AS PER POLICY I HAVE CALCULATED FIRST MAIN QUESTION  An electronics retailer is…

Q: 3. In a large population, 0.1% of individuals have certain rare disease. If 10,000 individuals are…

A: Given that, In a large population , 0.1% of the population have certain rare disease So…

Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…

A: Given Information: Sample size n=2253 Sample proportion p^=0.19

Q: 6. Based on U.S. Bureau of Justice data, 16% of those arrested in the U.S.A. are women. In one state…

A: Given, p = 0.16 sample  size n = 400 Mean E(x) = np = 0.16 *400 = 64 Standard deviation σ =…

Q: 20.  In a large shipping company, 70% of packages arrive to their destination on time.  If 9…

A: Solution Let X : packages arrive to their destination on time  And X ~ Binomial (n=9, p=0.70) Ans we…

Q: Students in a business statistics class were asked what grade they expected in the course and…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Suppose the proportion of elementary students in Texas that are enrolled in fully remote learning…

A: Given that p = 0.20, n = 100, p(x<=10) = ?

Q: 2. A company has found that in cartons of transistors, 92% contain no defective transistors, 3%…

A: Given information No defective = 0.92 One defective = 0.03 Two defectives = 0.03 Three defectives =…

Q: 5. With regards to a particular gene, the percentage of genotypes AA, Aa, and aa in a particular…

A:

Q: a. What is hypothesis testing in statistics? Discuss b. Does Type I error being considered more…

A: We have some basic questions regarding hypothesis testing and we have to answer them.

Q: If the mean salary of single people is equal to $      ["", "", "", ""]  and if another study was…

A: The hypothesized mean is 48300.The sample standard deviation is 16460.

Q: .The article "Thrillers" (Newsweek, Apr. 22, 1985) states,"Surveys tell us that more than half of…

A: Given data,n=225p=0.5P(p>0.6)=?

Q: 4.10 A die is rolled two times. Provide a list of the possible outcomes of the two rolls in this…

A: If two sets does not have any elements in common then they can be termed as mutually exclusive sets.…

Q: 2. An actuary studied the likelihood that different types of drivers would be involved in at least…

A: Given that a driver has been involved in at least one collision in the past year, the probability…

Q: You run a small coffee shop that offers five different sizes of coffee cups: small, medium, large,…

A: a) Let P(jumbo) be the probability of selling a jumbo size cup of coffee. Then, we have: P(small) +…

Q: 9. Sixty percent of all road accidents are due to distracted driving. In a random sample of 400…

A:

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.