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The Wechsler Adult Intelligence Scale is an IQ score obtained through test, and the scores are normally distributed with mean of 100 and a standard deviation of 15. A bell shaped graph is drawn to r
The roads recently paved by low bidding company revealed an average of two defects per mile after being used for one year. Using a Poisson distribution, if the county retains the same paving company
Sales of the first Quality Mini Buses were as follows: 250 yellow, 150, green, and 100 blue. Suppose the relative frequency method is used to assign probabilities for color choice and the color of e
A study was done to compare people's religion with how many days that they have said they have been calm in the past three days.
Supposing a binomial distribution, determine the probability that none in a random sample of four calculators is defective?
Market research might be employed to revise these probabilities. In the past, given the product was successful, 90 percent of time the market research was used. But, of the products that were not su
Suppose that womens heights are normally distributed with mean given by 63.1 inches, and standard deviation given by 3.1 inches. If only 1 woman is randomly chosen, determine the probability that her
Suggest two data sets A and B. The sets are identical except the high value of the data set B is three times greater than the high value of data set A.
Assume the diameter of rugs are normally distributed with a mean of 4.00 feet and a standard deviation of 0.38 feet. What is the probability of sampleing a set of 40 rugs and finding their mean to b
The assets (in billions of dollars) of the four wealthiest people in a particular country are 39, 33, 16, 15. Assume that samples of size n = 2 are randomly selected with replacement from this popul
An overnight express company should include seven cities on its route. How many different routes are possible, supposing that it matters in which order the cities are included in the routing?
You conducted a Chi-Square Goodness of Fit Test in your ASCI 691 capstone project. Unfortunately, you did not get the sample size you had hoped for during your research.
A survey asks participants if they support or oppose a 5% tuition raise at UF. If there are 580 respondents (selecting using simple random sample) to a survey, determine the approximate margin of er
All Seasons Plumbing has two service trucks which frequently need repair. If the probability the first truck is available is 0.78, the probability the second truck is available is 0.42,
Cooper Manufacturing has a policy that it will reject a shipment of parts from its supplier if inspectors determine any defective parts in a random sample of 5 parts from the shipment. The supplier
A retail company must select a few employees to send to national retail conference. Of the 770 employees at this company, 470 are male.
Suppose that adults have IQ scores that are normally distributed with mean of 105 and a standard deviation of 20. Find P4 which is the IQ score separating the bottom 4% frm the top 96%.
Suppose you did your own study to evaluate the performance of the three judges in Smallville, Texas: Judge Adams, Judge Brown, and Judge Carter.
A lightbulb has a normally distributed light output with mean 5000 end foot-candles and standard deviation of 50 end foot-candles. Find a lower specification limit such that only 0.5% of the bulbs w
Suppose IQ scores were obtained from randomly chosen siblings. For 20 such pairs of people, the linear correlation coeffiecient is 0.896 and the equation of the regression line is y=-6.54 + 1.06x wh
That data show the time intervals after eruption (to the next eruption) of certain geyser. Determine the regression equation, letting the first variable be independant (x) variable. Determine the be
In average, in a certain intersection results in 5 traffic accidents per month. What is the probability that for any given two months at the intersection at least one accident will occur?
The probability that the person living in a certain city and owns a dog is estimated to be 0.4. Find the probability that the 10 person randomly interviewed in that city is the 5 one to own a dog.
State the null and alternative hypotheses to be tested. Compute the test statistic. The null hypothesis is to be tested at 95% confidence. What do you conclude?
A brand name has a 50% recognition rate. Suppose the owner of the brand wants to verify that rate by beginning with a small sample of 7 randomly selected consumers.