a. Assuming that 50% of all workers who change jobs cash out their pension plans, if 16 workers who have recently changed jobs that had pension plans are randomly sampled, what is the probability that more than 10 of them cashed out their pension plan?
Q: d) A report indicates that 75% of all Parliament members agree with the proposal to lower the voting…
A: The given probability of all parliament members agree with the proposal is 0.75. It means that the…
Q: (a) If a random sample of 50 one-bedroom apartments is selected, what is the probability that the…
A:
Q: According to the 2009 current Population Survey conducted by the U.S. Census Bureau, 40% of the U.S.…
A: In question, Given that according to the 2009 current Population Survey conducted by the U.S. Census…
Q: Given the following two-way classification table for a sample of the number of MPC faculty and…
A: Consider the below table for necessary calculations. Has Internet at Home Does Not Have…
Q: 1. Is the graph shown a probability distribution of a discrete random variable? Why or why not?
A:
Q: Suppose Gallup wishes to complete a follow-up survey to find out more about the specific type of…
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…
A: From the provided information, Positive test result (Drug use is indicated) Negative…
Q: 1. A six member debate team is to be formed from 8 boys and 10 girls who tried out. a) Determine the…
A: A random variable is a variable whose values depend on outcomes of a random experiment. It is a…
Q: Given that the number superimposed in a rolling dice experiment is odd, what is the probability that…
A: It was stated that the number superimposed in a rolling dice experiment is odd. Need to find the…
Q: It is estimated that 75%of all young adults between the ages of 18-35 do not have a landline in…
A: Given Information- p = 0.75 q = 1-0.75 =0.25 n = 100 Here we use Binomial distribution, Binomial…
Q: In the experiment of tossing an unbiased coin (or synonymously balanced or fair coin), the sample…
A:
Q: Suppose an actual census showed that 18.4% of the households in California have incomes in excess of…
A: It is given that n =750 and p =0.184.
Q: Social Media Harris Interactive conducted a surveu in which they asked adult Americans (18 years or…
A: Hi! Thank you for posting the question. Since your question has more than three sub-parts, we have…
Q: Find the probability of being dealt an 8-4-1 distribution, that is, eight cards of one suit, four of…
A: Given that, A bridge hand consists of an unordered arrangement of 13 cards dealt at random from an…
Q: 17. What is the probability that a randomly selected person would be a Female ana had a Negative…
A: Provided information is, a market research study is being conducted to determine if a product…
Q: he Pew Research Center surveyed adults who own/use the following technologies: Internet, smartphone,…
A: Ans for The Pew Research Center surveyed adul ...
Q: Suppose it is reported that 79 % of people subscribe to a cable or satellite television service. You…
A:
Q: Suppose the random variable X has the following probability distribution:
A: Question 2) We have given that X has a random variable, taking the values 1,3,5,9 and corresponding…
Q: The table below shows the number of survey subjects who have received and not received a speeding…
A: From the provided information, The table is as follow: Red Car Not Red Car Total…
Q: Q. A state public health department wishes to investigate the effectiveness of a campaign against…
A:
Q: 18. Given that a randomly selected person had a Negative Reaction to the study, what is the…
A: 18. There are totally 2,000 consumers are considered in this study out of which 660 are males and…
Q: A study of consumer smoking habits includes 200 people in the 18-22 age bracket (40 of whom smoke),…
A:
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: Given the following two-way classification table for a sample of the number of MPC faculty and…
A: Consider the below table for necessary calculations. Has Internet at Home Does Not Have…
Q: (a) What is the probability that a randomly selected board cut by the machine has a length greater…
A:
Q: State Farm Insurance studies show that in Colorado, 65% of the auto insurance claims submitted for…
A: According to the provided information: Probability (p) = 0.65 Sample size (n) = 8
Q: According to a government statistical organization, the unemployment rate for workers aged 22 to 25…
A: Given data: p = 5.7% Sample size (n) = 90 To find: a. What is the probability that 6 or fewer will…
Q: (b) What is the probability that the second inspector assigns a higher safety inspector? score than…
A:
Q: Pinky Bauer, Chief Financial Officer of Harrison Haulers, Inc., suspects irregularities in the…
A: Given P=10%=0.1 n=200
Q: a. What is the probability that exactly 10 are from their elementary school? b. What is the…
A: Given: In one of the biggest schools in Metro Manila, 80% of their high school students are known…
Q: G. What is the probability that a randomly selected person from this study did not use the patch to…
A:
Q: 16. What is the probability that a randomly selected male would have a Positive Reaction to this…
A: Given, positive reaction neutral reaction negative reaction Male 310 200 150 Female 450 550…
Q: I A production facility employs 15 workers on the day shift, 14 workers on the swing shift, and 10…
A:
Q: What is the probability that a randomly selected student has a parent involved in three or four…
A: Given that the random variable X represents the number of activities a parent of 6th to 8ty grade…
Q: A study of consumers smoking habits include 160 people in the 18-22 age bracket (49 of whom smoke),…
A:
Q: (a) What is the probability that in a randomlý sampled individual, gene 1 is dominant? (b) What is…
A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…
Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…
A:
Q: What is the probability of getting a sample in which more than 70% think that airplanes would be…
A: Let p be the true proportion of adults who think airplanes would be safer places if airlines…
Q: (a) What is the probability that among 12 randomly observed individuals, exactly 7 do not cover…
A: here given , According to a study done by Nick Wilson of Otago University Wellington, the…
Q: A university recently surveyed 500 students to determine which new fitness area to offer in its…
A: Required probability is P(spinning room/graduate student)
Q: large cable company reports that 42% of its customers subscribe to its Internet service, 32%…
A: Given large cable company reports that 42% of its customers subscribe to its Internet service, 32%…
Q: According to recent estimates by the Insurance Corporation of British Columbia (ICBC), 20 percent…
A:
Q: b. What is the probability that an individual in this sample has length of residence greater than 5…
A: a. Using Excel let us plot the probabilities. After plotting the probabilities we calculate the…
Q: Refer to the sample data for pre-employment drug screening shown below. If one of the subjects is…
A:
Q: If the rework percentage increases to 4%, what is the probability that all 20 samples do not require…
A: 1. Let , X be the number of parts in the sample that does not require rework. Here , X→B(n=0.01 ,…
Q: Eleven percent of American children (ages 4 to 17) have Attention Deficient Hyperactivity Disorder…
A:
Q: An auditor for Health Maintenance Services of Georgia reports 40% of policyholders 55 years or older…
A: Binomial distribution : A Binomial is a type of distribution which has two possible outcomes. i.e.,…
Q: d) What is the probability that at least two different shifts will be represented among the selected…
A: Probability is the likelihood occurrence of the event. Possible arrangement of observation can be…
q2
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- A company studied the number of lost-time accidents occurring at its Brownsville, Texas, plant. Historical records show that 6% of the employees suffered lost-time accidents last year. Management believes that a special safety program will reduce such accidents to 4% during the current year. In addition, it estimates that 15% of employees who had lost-time accidents last year will experience a lost-time accident during the current year. a. What percentage of the employees will experience lost-time accidents in both years (to 2 decimals)? % b. What percentage of the employees will suffer at least one lost-time accident over the two-year period (to 2 decimals)?Suppose that historically, the proportion of people who trade in their old car to a car dealer when purchasing a new car is 48%. Over the previous 6 months, in a sample of 115 new-car buyers, 46 have traded in their old car. To determine whether the proportion of new car buyers that trade in their old car has statistically significantly decreased, what is the p-value? (please round your answer to 4 decimal places)Dentists are increasingly concerned about the growing trend of local school districts to grant soft drink companies exclusive rights to install soda pop machines in schools in return for money-usually millions-that goes directly into school coffers. According to a recent study by the National Soft Drink Association, 62% of schools nationally already have such contracts. This comes at a time when dentists are seeing an alarming increase in horribly decayed teeth and eroded enamel in the mouths of teenagers and young adults. With ready access to soft drinks, children tend to drink them all day. That, combined with no opportunity to brush, leads to disaster, dentists say. Suppose that 20 schools around the country are randomly selected and asked if they have a soft drink contract. Find the probability that the number of 'Yes" answers is A. exactly 8 B. at most 8 C. at least 4 D. between 4 and 12, inclusive
- In May 2008, CNN reported that Sports Utility Vehicles (SUVs) are plunging toward the "endangered list". Due to soaring oil prices and environmental concerns, consumers are replacing gas-guzzling vehicles with fuel-efficientsmaller cars. As a result, there has been a big drop in the demand for new as well as used SUVs. A sales manager of a used car dealership for SUVs believes that it takes more than 90 days, on average, to sell an sUV. In order to test his claim, he samples 40 recently sold SUVs and find that it took an average of 95 days to sell an SUV. He believes that the population standard deviation is fairly stable at 20 days. Determine if the sales manager's claim is justifiable at 0.05Suppose that 2% of the employed lose their job each month. Further suppose that 25% of the unemployed find a job each month. a. What is the average duration of employment in this labor market? b. Do you think this is a reasonable figure given estimates of the natural rate? Why or why not? c. If you wanted to reduce the steady-state level of unemployment, what type of policies might you pursue and why?The National Highway Association is studying the relationship between thenumberof bidders on a highway project and the winning (lowest) bid for the project. Ofparticular interest is whether the number of bidders increases or decreases the amountof the winning bid.
- A survey of 131 investment managers in Barron’s Big Money poll revealed the following:● 43% of managers classified themselves as bullish or very bullish on the stockmarket.● The average expected return over the next 12 months for equities was 11.2%.● 21% selected health care as the sector most likely to lead the market in thenext 12 months.● When asked to estimate how long it would take for technology and telecom stocksto resume sustainable growth, the managers’ average response was 2.5 years.a. Cite two descriptive statistics.b. Make an inference about the population of all investment managers concerning theaverage return expected on equities over the next 12 monthsA survey of 131 investment managers in Barron’s Big Money poll revealed the following:● 43% of managers classified themselves as bullish or very bullish on the stockmarket.● The average expected return over the next 12 months for equities was 11.2%.● 21% selected health care as the sector most likely to lead the market in thenext 12 months.● When asked to estimate how long it would take for technology and telecom stocksto resume sustainable growth, the managers’ average response was 2.5 years.a. Cite two descriptive statistics.Along with interest rates, life expectancy is a component in pricing financial annuities. Suppose that you know that last year average life expectancy was 77 years for your annuity holders. Now you want to know if your clients this year have a longer life expectancy, on average, so you randomly sample n=20 of your recently deceased annuity holders to see actual age at death. Using a 5% level of significance, test whether or not the new data shows evidence of your annuity holders now live longer than 77 years, on average. The data below are the sample data (in years of life): (78,75,83,81,81,77,78,79,79,81,76,79,77,76,79,81,73,74,78,79) Does this sample indicate that life expectancy has increased? Test an appropriate hypothesis and state your conclusion (use a 5% level of significance). Be sure to check the necessary assumptions and conditions before conducting your test. Construct A 90% confidence interval for the true average age of death for the…