Suppose that the weight of a particular hand weight is advertised to be 5 pounds, but it can actually be as little as 4.6 pounds or as much as 5.2 pounds. What is the likelihood that the actual weight of a given hand weight is between 4.9 and 5.1 pounds?
Q: The amount of time a Roanoke College student spends on Instagram has an approximately exponential…
A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…
Q: A reader wrote in to the “Ask Marilyn” column in Parade magazine to say that his grandfather told…
A: As per guidelines we will only answer first three subparts, please repost other subparts for more…
Q: in a recent poll 13% of all respondents said they are afraid of heights
A: a) Here, n = 3, p = 0.13, (1 - p) = 0.87 and x = 3As per binomial distribution formula P(X = x) =…
Q: A survey shows that 3/5 Australian adults are overweight and 1/10 Australian adults are obese. What…
A:
Q: A population has a mean of 200 and a standard deviation of 25. A sample of 64 observations will be…
A: We have to find out given probabiity..
Q: 9% of all cars fail the emissions inspection, find the probability that in a sample of 125 cars, 16…
A: Given n=125 P=0.09
Q: .If you are at the 90th percentile in terms of GPA, then 90% of the sample has a lower GPA than you.…
A: Percentile : Percentile is the number such that certain percentage of data fall below that number.…
Q: The administration team compiled test results for those who had been tested for strep throat in a…
A: The objective of the question is to determine the ratio of false positives to true positives based…
Q: Previous research showed that 15% percent of teenagers between the ages of 13 and 17 smoke. A study…
A: Given,Population proportion(P)=0.15sample size(n)=785no.of teenagers smoke who has age between 13 to…
Q: Match the definitions or illustrations below to their correct terms. The stated level of risk the…
A: Type I error (α):Type I error is defined as the probability of rejecting the null hypothesis when it…
Q: The weights of steers in a herd are distributed normally. The variance is 10,000 and the mean steer…
A: Population mean=1400Population variance=10000Population standard deviation =√Variance=√10000=100
Q: An appliance dealer's website features the mean life expectancy values for major household…
A: Standard normal distribution: The standard normal distribution is a special case of normal…
Q: According to Variety (Aug. 27, 2009), the average age of viewers of live television programs br CBS,…
A: Introduction: It is of interest to test whether the age of the viewers of the rival network is less…
Q: use a ti84 device to solve. A quality control expert at Glotech computers wants to test their new…
A: Given: X~Nμ, σ The value of n is 121. The value of μ= 85 The value of σ is estimated as, σ = 49 = 7…
Q: The mean height of American men between 20 and 29 years old is 69 inches, and the standard deviation…
A: Given: Mean(μ)=69 inchesstandard deviation(σ)=3 inchesx =6 feet or more =6×12 =72 inches or…
Q: A doctor wants to know if a blood pressure medication is effective. Six subjects have their blood…
A: In this context, it is appropriate to use paired t test. d=Before-After. μ1 is the mean blood…
Q: The estimated annual probability that a woman over the age of 32 dies of lung cancer equals 0.001204…
A:
Q: The average price of regular unleaded gasoline was reported to be $2.34 in 2006. Use the price as…
A:
Q: Based on data, an insurance company estimates that a particular customer from a certain group has a…
A: It is given that-Probability that the customer will have accident next year = 0.039Average insurance…
Q: An insurance policy to cover damages on a uhaul truck for duration of rental is $900. Based on…
A: Given: Insurance policy cover damages of rental is = $900 The average repair cost is = $1100 Numbers…
Q: The probability that a radish seed will germinate is 0.7. Estimate the probability that of 140…
A:
Q: Suppose the probability a patient will recover from a disease following medication is 0.7. In a…
A: Given : the probability a patient will recover from a disease following medication is 0.7. In a…
Q: Please explain how to solve the following: The Aluminum Association reports that the average…
A: we are suppose to answer three sub parts .
Q: A biology professor claims that, on the average, 15% of her students get a grade of A, 25% get a B,…
A: The number of categories k is 5.
Q: The owner of a computer repair shop has determined that their daily revenue has mean $7200 and…
A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…
Q: A physician claims that a person's diastolic blood pressure can be lowered if, instead of taking a…
A:
Q: Suppose your statistics professor reports test grades as z-scores and you got the score of 2.33 on…
A: If X~N(µ, σ2) then, distribution of z=x-μσ~N0, 1 Provided information is, statistics professor…
Q: a. Perform a correlation analysis. Define your hypothesis, state your conclusions, and show all…
A: The records of litter size for several years of golden retrievers are given below:Age of sireAge of…
Q: Before going to college, Chelsea wanted to see if she could sell her old car online. She selected a…
A: Given, She selected a sample of the price on 25 similar car sold online in the past month. Chelsea…
Q: 4. The systolic blood pressure reading for a person varies throughout the day. Assume that for a…
A: The normal distribution is used in statistics to calculate probabilities.
Q: The average price for an acre of land is $20,000 with a standard deviation of $2500. What is the…
A: From the provided information, Mean (µ) = 20000 Standard deviation (σ) = 2500 X~N (20000, 2500)
Q: Professional athletes are threatening to strike because they claim that they are underpaid. The team…
A: The owners have reported the average value, whereas the players have reported the individual median…
Q: use a ti84 device to solve The quality control manager at a computer manufacturing company believes…
A: From given data we have : Population mean is μ=97 Population standard deviation (variance…
Q: Assume that adults have IQ scores that are nomally distributed with a mean of u= 100 and a standard…
A: It is given that the mean is 100 and standard deviation is 15.
Q: Solve the problem. Assume that mountain lions' weights are normally distributed with a mean of 62.6…
A: We have given that, X be the random variable from normal distribution with mean (μ) = 62.6 ,…
Q: Given a population of iguanas with a known mean length of 3.7 ft and standard deviation 0.55 ft.…
A:
Q: Find the probability that the mean for 20 randomly selected distances is greater than 195.70 cm.
A: Given that. X~N( μ , ?) μ=197.5 , ?=8.9 Z-score =( x - μ )/?
Q: Sample SI2e On = 0.041. (Round to three decimal places as needed.) (d) In the sample obtained in…
A:
Q: Suppose that 24% of all donuts at the fair are misshapen. Calculate the expected number of properly…
A: Given,n=70p=0.24
Q: You may need to use the appropriate appendix table to answer this question. Suppose that the average…
A: For country AMean()=3.74standard deviation()=0.25For country BMean()=3.40standard deviation()=0.20
Q: Read the following problem description then choose the correct null and alternative hypothesis. A…
A: It is an important part part of statistics. It is widely used.
Q: Use technology to solve the following problem: A normal population has a mean = 31 and standard…
A: Given Information: Mean, μ=31Standard Deviation, σ=7To find out the probability that a randomly…
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: A population has a mean of 90 and a standard deviation of 10. A sample of 100 observations will be…
A:
Q: Goldilocks Effect: Read to Your Kids! The American Academy of Pediatrics recommends that parents…
A: Explanatory variables are independent variables which is used to predict the response variable or…
Step by step
Solved in 2 steps
- The NIH is creating a test for the Zika virus. The incidence of a Zika is low, 11 percent in the general population. There is a trial version, but it sometimes misses the disease. The probability of a false negative is 0.03. Similarly, someone who does not have Zika, will sometimes get a positive reading. The probability of this is 0.1. Fill in the tree diagram and... Answer as a decimal to 4 decimal places. D = event that someone actually has Zika %3D positive = event that a test states that a person has Zika Conditional Marginal Probabilities Joint Probabilities Probabilities 0.9700 Enter an integer or decimal number [more..] P(D and positive) P(positive | D) False 0.1100 0.0300 negative P(D) P(negative | D) P(D and negative) 0.1000 False Positive 0.8900 P(no D) P(positive | no D) P(no D and positive) 0.9000 P(negative | no D) P(no D and negative)A study found that student weights averaged 87.3lb with a SD = 4lb. What is the 2-decimal % probability that an individual student will weight below 85 lb? What is the 2-decimal % probability that a group of 35 students will have a mean weight of over 88 lb?Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the standard deviation is 5. What is the probability of selecting a person with a score greater than Cody’s?
- A psychologist believes that 65% of male drivers when lost continue to drive hoping to find the location they seek rather than ask directions. To examine this belief, he took a random sample of 350 male drivers and asked each what they did when lost. Assume that the sampling distribution of the sample proportion of male drivers who continue driving is at least approximately normal. If the belief is true, determine the probability that less than 60% said they continue driving. Show your work belowA reseacher desires to know if the age of a child is related to the number of cavities he or she has.A certain virus affects 0.7% of the population. A test used to detect the virus in a person is positive 87% of the time if the person has the virus (true positive) and 14% of the time if the person does not have the virus (false positive). Fill out the remainder of the following table and use it to answer the two questions below based on a total sample of 100,000 people. Virus No Virus TotalPositive Test Negative Test Total 100,000a) Find the probability that a person has the virus given that they have tested positive. Round your answer to the nearest hundredth of a percent and do not include a percent sign. % b) Find the probability that a person does not have the virus given that they test negative. Round your answer to the nearest hundredth of a percent and do not include a percent sign. %
- A breeder of golden retriever dogs has kept records on litter size for several years. They want to know if litter size is dependent on parent age. Age of Sire 9.0 7.0 6.5 4.3 5.0 4.1 3.7 8.0 7.0 4.1 4.5 7.0 6.0 Age of Dam 2.0 2.5 4.0 3.3 6.0 5.0 4.5 4.1 8.2 2.4 2.9 3.7 4.0 Litter Size 11 10 9 12 5 9 9 8 7 10 12 10 9 b. Perform a regression analysis. Define your hypothesis, state your conclusions, and show all work.Solve the problem.Assume that male Siberian huskies' weights are normally distributed with a mean of 63.6 pounds and a standard deviation of 2.5 pounds. If 90 male Siberian huskies are randomly selected, find the probability that they have a mean weight between 62.9 pounds and 64.0 pounds.There are 435 seats in a nation's House of Representatives. The number of representatives per state is calculated using a statistical formula determined by law, but allocation is roughly proportionate to population. In 2010, the nation's population was estimated to be 309.1 million. The state's population was estimated at 26.1 million. How many representatives would you expect to be assigned to the state? Suppose the state actually has 34 representatives. Compare this with the expected number of representatives from the state.
- A survey found that 40% of adults in the United States have a pet in their home. Use this information to find the following: a. Find the probability that when we randomly select 13 adults exactly 7 of them have a pet in their home. Round your answer to two decimal places. b. Find the mean and standard deviation for the number of adults that have a pet in their home when we randomly select 13 adults. Round your answer to two decimal places.The National Collegiate Athletic Association (NCAA) requires colleges to report the graduation rates of athletes. Here are data from a Big Ten university’s report. The graduation rates were 37 of 45 female athletes and 58 of 102 male athletes. Is there evidence that a smaller proportion of male athletes than female athletes graduate within six years?your car is more crowded than you think. table 5.8 reports results from a 1969 personal transportation survey on "home-to-work" trips in metropolitan areas. The survey stated that the average car occupancy was 1.4 people. check that calculation.
