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Approximately 70% of all marketing personnel are extroverts, while regarding 50% of all computer programmers are introverts. (Round your answers to three decimal places.)
Determine the mean of the data. Determine the deviations for each data point and their squares
Three balls are randomly being tossed to 3 urns. Let Xi be the number of balls in urn i and let Y the number of urns that are not empty.
Assume that X is the discrete random variable with P(X=1) = theta and P(X=2)=1-theta. Three independent observations of X are made: x1=1, x2=2, x3=2
A college basketball team shoots 70% from free throw line. They shot 30 free throws in last nights game. Determine the probability they made 25 free throws Determine the probability they made at lea
Mr. Jones is investigating nurses' opinion on the level of pay and promotional opportunities. He would like to know nurses' opinion from small, medium and large hospitals. Which sampling method woul
A lot of 20 parts contains 5 defective parts. Suppose sampling without replacement. Determine the probability that 1 defective part will be found in a sample size of 6?
Find out the method of moments estimate of Theta. What is the likelihood function? What is the maximum likelihood estimate of theta?
A study investigates the performance of students in an exam, which is known to follow a normal distribution, with a mean of 63 and a standard deviation of 21. What is the probability that the averag
Let Ymin be the smallest order statistic in random sample of size n drawn from the uniform pdf, f sub Y (y; ?) = 1/?, 0 ? y ? ?. Find an unbiased estimator for ? based on Ymin.
An exclusive club for top students has to elect the new President and Treasurer. There are 50 students in the club, and all are eligible for election. No person can have two jobs. How many di?erent
Two fair dice are bing tossed. Let X be the sum of the outcomes. Compute the distributions and expectation of X.
In the study of perception, 147 men are tested and 17 are found to have red/green color blindness. Determine a 93% confidence interval for true proportion of men from sampled population which have th
Glaucoma is disease of eye which is manifested by high intraocular pressure. The distribution of intraocular pressure in general population is approximately normal with mean 16 mm Hg and standard de
The blood pressure requirements of a single patient were taken by twelve different medical students and the results are listed below.
In a test of effectiveness of garlic for lowering cholesterol 49 subjects were treated with garlic in aprocessed tablet form. Cholestero; levels were measured before and after the treatment. The cha
If np greater than or equal to and nq greater or equal to determine P(more than 6) with n=14 and p=0.3 by using normal distribution as an approximation to the binomial distribution ;if np less then
If this branch of military changes the height requirement so that all women are eligible except the shortest 1% and the tallest 2% what are the new height requirement?
In accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is a probability distribution. If it is a pr
Assume the speed at which all people eat popcorn is normally distributed N(3,1). I then go an adopt a child. What is the probability that this child will eat popcorn with a value greater than 3?
Is there significant relationship between student population and quarterly sales significant at significance level, ? = 0.01, 0.05, and 0.1? Answer this using at least 75 words.
The average amount of time till a car accident on specific 60 mile stretch of road is 30 minutes. Suppose (unreasonably) that car accidents are independent, and that two accidents can't occur at th
In a specific state, a major flood takes place once every 5 years on average. If you can suppose floods are independent, and that two floods can't happen simultaneously, find the following: