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If we assume that the errors made by rounding off are independent and identically distributed as well as have uniform distribution over the interval (-0.5, 0.5), compute approximately the probabilit
Assume you could take all possible samples of size n = 25 from normal population with mean = 50 and standard deviation = 5. Would you be surprised to find out a sample mean of 47 under these conditi
Among a sample of 57 male soldiers average shower time was found to be 2.6 minutes and standard deviation was found to be 0.69 minutes. Among the sample of 52 female soldiers the average shower time
If customer complains that her package of film doesn't show the expiration date, determine the probability that is was inspected by John?
The average score of all golfers for particular specific course has a mean of 73 and standard deviation of 3. Assume 36 golfers played the course today. Find out the probability that the average sco
Suppose the levels of variables are quantitative and large from low to high levels of variable with equal intervals from A1 to A4. Indicate orthogonal trends on A variable which are capable of being
The amount of corn chips dispensed in a 16-ounce bag by dispensing machine has been identified at possessing normal distribution with mean of 16.5 ounces and standard deviation of 0.1 ounce. A
If sample proportion, P^, is the sample proportion saying that food is delicious, determine the mean of the sampling distribution of the sample proportion, p^?
Discuss why simply confirming a theory may not be very informative.
Why should the scientific technique be preferred as a system for fixation of belief for psychological researchers relative to alternative sources of understanding?
Specify the independent as well as dependent variables. Determine some potential confounding variables? How could you prevent the confounding?
Agri-Beef, Inc. is large Midwestern farming operation. The company has been leader in employing statistical methods in its business. Recently, John Goldberg, operations manager, requested that rando
Establish the appropriate null as well as alternative hypotheses.b. On one occasion where a sample of 40 customers was selected, the average number of days was 6.65, with the sample standard deviati
To estimate the size of a population of animals by trapping, traps are set four times in succession. Assume each animal has the same probability of being trapped, 0.5.
You take an SRS of size 36 from a population with mean 240 and standard deviation 18. Find the mean and standard deviation of the sampling distribution of your sample size.
Suggest the following probability density function (pdf).
Use a =.05 to test for any significant difference in the mean expense ratio among the four types of stock funds.
The average amount of percipitation in Dallas, throughout the month of april is 3.5 inches. Suppose that a normal distribution applies and that the standard deviation is .8 inches.
Suppose that the farmers surveyed are an SRS from the population of all commercial corn growers that standard deviation of yield in this population is σ= 10 bushels per acre. ( Do an hypothesi
Data for the specific subdivision near downtown Houston indicate that the average price per square foot for home is $100 with a standard deviation of $5 (normallydistributed). Determine the probabil
Construct a 99% confidence interval estimate of mean length of all movies. Supposing that it takes 30 minutes to empty theater after a movie, clean it, allow time for the next audience to enter, and
Determine a 95% confidence interval for population mean concentration of uric acid in this patient's blood. (Round you answers to two decimal places)
Employ the normal approximation to compute the probability that at least 80 of the children in the sample live in poverty.
If the newspaper interviews five faculty members, determine the probability that a majority (that is 3 or more) oppose the language requirement? (suppose that the faculty members are chosen at rando
Determine the probability that a single student randomly selected from all those taking the test scores 21 or higher? The average score of the 76 students at Northside High who took the test as x =20