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According to the National Lightning Safety Institute, in a given year the odds that a home will be struck by lightning is 1:200. What is the probability? .
According to the website www.superbowlhistory.net, the percentage of games that were won by more than 28 points was approximately 10%. If 8 Super Bowl games are randomly chosen, what is probability that 7 of the games were won by more than 28 points? Does this probability indicate an unusual or.
According to the National Center for Education Statistics, 63% of Texas students are eligible to receive free or reduced-price lunches. Suppose you randomly choose 295 Texas students. Find the probability that no more than 66% of them are eligible to receive free or reduced-price lunches .
According to infoplease, 18.8% of luxury cars manufactured in 2003 were silver. A large car dealership typically sells 50 luxury cars a month. Q: explain why you think that the luxury car sales can be considered Bernoulli trials. According to infoplease, 18.8% of luxury.
According to statistics reported on CNBC, a surprising number of motor vehicles are not covered by insurance. Simple results, consistent with the CNBC report, showed 48 of 187 vehicles were not covered by insurance. 1a) can you see from the data that the proportion of vehicles not covered by insurance.
According to the graph above, which of the following is the estimated difference in allergies in the 1-2 year range? A. 25% B. 7% C. 3% D.18% .
According to the National Institute on Alcohol Abuse and Alcoholism (NIAAA) and the National Institutes of Health (NIH), 41% of college students nationwide engage in "binge-drinking" behavior: having 5 or more drinks on one occasion during the past two weeks. A college president wonders if the proportion of students enrolled.
According to the U.S. Government Accountability Office, women hold 40% of the management positions in the United States. Suppose we take a random sample of 20 people in management positions. Find the A) all women B) atleast 16 women C) no.
According to medical data, the probability than an adult US citizen has been diagnosed with high cholesterol is 15%. Suppose you randomly select 65 adults and ask if he or she has been diagnosed high cholesterol. Decide whether you can use the normal distribution to approximate the binomial distribution. If.
According to the Labor Department, the average duration of unemployment for adults ages 20 to 24 was 34.6 weeks during a recent month. Assume that the standard deviation for this population is 10.2 weeks. A random sample of 36 adults in this age group was selected. What is the probability.
According to New Scientist (January 2, 2002), a new thermal imaging camera that detects small temperature changes is now being used as a polygraph device. The United States Department of Defense Polygraph Institute (DDPI) claims that the camera can detect liars correctly 75 % of the time by monitoring the.
According to the National Institute of Diabetes and Digestive and Kidney Diseases, 68.8% of adultsare considered obese. You consider this to be high. You take a random sample of 60 individuals and nd that 34 are obese. (a) What are the hypotheses for this situation? .
According to the College Board'sreport. the average tuition and fees at four yearprivate colleges and universities in the United States was S18,273 for the academic year 2002 - 2003 and the standard deviation was $2100. For a random sample of 100 four yearprivate U.S. colleges: What is the mean of.
According to the Normal model, if we draw repeated random samples of the same size (n) from same population and measure the sample proportions, then these proportions will pile up around the true population proportion (p). The requirement for this to happen is: A) np and nq.
According to Runzheimer International, in a survey of relocation administrators 63% of all workers who rejected relocation offers did so for family considerations. Suppose this figure was obtained by using a simple random sample of the files of 672 workers who had rejected relocation offers. Use this information to construct.
According to the Air Transport Association of America,the average operating cost of an MD-80 jet ailiner is 2,087 per hour. .
according to the department of health 30 percent of 18- 25 year olds have some form of mental illness. what is the probabilty of atleast 1 of 6 randomly selected has some sort of mental illness? .
According to the Merck Veterinary Manual, the average resting heart rate for a certain type of sheep dog is 115 beats per minute (bpm). A Montana farmer notices his aging sheep dog has been acting more lethargic than usual. He believes that her heart rate is slower than normal for.
According to the same NCAA data, the means and standard deviations of eligibility and retention rates (based on a 1,000-point scale) for the 2010-2011 academic year follow, along with the scores for two men’s basketball teams, A and B. Assume that test scores are normally distributed. .
According to the Central Limit theorem, the distribution of a sample mean is normally distributed when? a) sample size is very large b)The sample standard deviation is very large c)We are preforming an observational study .
According to the National Center for Education Statistics, 58% of Texas students are eligible to receive free or reduced-price lunches. Suppose you randomly choose 280 Texas students. Find the probability that no more than 61% of them are eligible to receive free or reduced-price lunches. .
According to the National Center for Education Statistics, 67% of Texas students are eligible to receive free or reduced-price lunches. Suppose you randomly choose 305 Texas students. Find the probability that no more than 72% of them are eligible to receive free or reduced-price lunches. .
According to the Regional Bar Association, approximately 67% of the people who take the bar exam to practice law in the region pass the exam. Find the approximate probability that at least 68% of 400 randomly sampled people taking the bar exam will pass. Using a normal approximation, what is.
According to the Census Bureau, 3.20 people reside in the typical American household. A sample of 26 households in Arizona retirement communities showed the mean number of residents per household was 2.86 residents. The standard deviation of this sample was 1.20 residents. At the .05 significance level, is it reasonable.
According to the National Study of Postsecondary Faculty, female professors earn an average of $12,000 less than male professors across all postsecondary institutions in the United States. a) If you were also given the standard errors of the annual mean salaries for male and female professors in.
According to the Center for Disease Control (CDC), the percent of adults in the UnitedStates who are overweight is 69.0%. One large city’s council wants to know how their city’s proportion compares to the national proportion. They take a random sample of 150 adults in their city and nd that.
According to studies, a business school graduate with a college diploma or undergraduate degree earns more than a high school graduate with no additional education, and a person with a master's or doctorate earns even more. To test this, a random sample of 25 executives from companies with assets over.
According to the U.S. Government Accountability Office, women hold 40% of the management positions in the United States. Suppose we take a random sample of 20 people in management positions. Find the A) all women B) atleast 16 women C) no.
According to poll results released by the Pew Research Center (www.people-press.org) in 2010, when adults in the United States were asked whether there is solid evidence that the average temperature on earth has been getting warmer over the past few decades, the estimated odds of a yes response for a.
According to the US Department of Health and Human Services, the percentage of adults who smoked cigarettes in 2011 was 19%. A survey of 500 adults taken in 2012 found 70 who smoke. The researcher is interested in finding evidence at the .05 significance level of a decrease from 2011.
According to u Wakefield Research survey of adult women, 50% of the women said that they had tried five or more diets in their lifetime (USA TODAY, June 21, 2011). Suppose that this result is true for the current population of adult women. A random sample of 13 adult women.
According to IDC, HP controls 34% of the color inkjet printer market worldwide. A random sample of 150 inkjet users was selected. What is the probability that 45 or fewer of these individuals used an HP printer? A. 0.2236 B. 0.0749 .
According to the American Red Cross, approximately 10% of the human population is blood type B-positive. If we select 20 people at random, find the probability that more than 3 people in the sample have blood type B-positive. Is this unusual? I need it broken down in easier terms to.
universities in the United States was S18,273 for the academic year 2002 - 2003 and the standard deviation was $2100. For a random sample of 100 four yearprivate U.S. colleges: What is the mean of the sampling distribution? What is the standard deviation of the sampling.
According to the Internal Revenue Service, the mean tax refund for the year 2007 was $2,708. Assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution .
According to the US census bureau, in 2011 about 10% of persons between 25 and 39 years old live alone. For a random sample size of n, use the binomial table to find the probability of (a) 1 or fewer persons living alone when n=12 .
According to the Empirical Rule, what percentage of your sample means should be within 2 standard deviations of the population mean? Again, do your sample means seem to conform to the rule? .
According to the Census Bureau, 3 33 people reside in the typical American household. A sample of 21 households in Arizona retirement communities showed the mean number of residents per household was 2 86 residents The standard deviation of this sample was 1.32 residents. At the 10 significance level, is.
According to the Census Bureau, 3.14 people reside in the typical American household. A sample of 20 households in Arizona retirement communities showed the mean number of residents per household was 2.82 residents. The standard deviation of this sample was 1.11 residents. At the .10 significance level, is it reasonable.
According to the results of the 2004 presidential election, 59% of New Yorkers voted for Kerry. Imagine the set of all possible samples of size 100 from all New Yorkers who voted. For each sample of size 100, the value of the sample proportion P Unit vector is the proportion.
According to the National Automobile Dealers Association, the mean selling price for used cars is $10,192 with the population standard deviation of $3000. .
According to Health Affairs (Oct. 28, 2004), 50% of all patients wait more than 30 minutes in a typical U.S. emergency room. Suppose 150 patients visit the emergency room on a particular day. Using normal aproximation to work out the following probabilities. a.) Let X be the.
According to the Current Population Survey, the following table summarizes probabilities for randomly selecting a full-time student in various age groups: Age 15–17 18–24 25–34 35 or older Probability 0.007 0.573 0.260 0.160 If we randomly select a full-time student, the probability that.
According to the American Consumer Satisfaction Index, airlines received an average satisfaction score of 65 last year on a scale of 0-100. Assume that this satisfaction score is normally distributed with a standard deviation of 13.5. What is the probability that a randomly selected respondent rated airline.
According to the Insurance Institute of America, a Family of four spends between $400 and $3,800 per year on all types of insurance. Suppose the money spent is uniformly distributed between these amounts. What is the mean amount spent on insurance? .
According to the Sleep Foundation, the average night's sleep is 6.8 hours (Fortune, March 20, 2012). Assume the standard deviation is .5 hours and that the probability distribution is normal. What is the probability that a randomly selected person sleeps more than 8 hours (to 4 decimals)? .
According to the Bureau of Labor Statistics, it takes an average of 22 weeks for someone over the age of 55 to find a new job, compared with 16 weeks for younger workers (Source: The Wall Street Journal, September 2, 2008). Assume that the probability distributions are normal and that.
According to the report, the mean monthly cell phone bill was $48.95 three years ago. A researcher suspects that the mean monthly cell phone bill is different today. (a) Determine the null and alternative hypotheses. Choose the correct answer below. (b) Explain what it would mean to make a Type.
According to the Food and Drug Administration (FDA), a cup of coffee contains on average 115 milligrams (mg) of caffeine, with a standard deviation of 30 mg. Suppose you want to repeat the FDA experiment to obtain an estimate of the mean caffeine content in a cup of coffee correct.
According to the Centers for Disease Control (CDC), 3years old boys have a mean height of 38 inches and a standard deviation of 2 inches. The distribution is approximately Normal. a. What percentage of 3-year-old boys have a height of 39inches or more? b.What.
