I have completed these but have no solutions with workings out Use the binomial distribution to calculte the pobability of........Calculate the probability that the lifetime of a paticular device is........Investigate the degree of correlation between the results....Use a regression technique to estimate the job performance..
Tourism is one consideration for CoffeeTime's future, A survey of 1,233 visitors to mumbai last year revealed that 110 visited a small cafe during their visit. Laura claims that 10% of tourists will include a visit to a cafe. Use a 0.05 significance level to test her claim. Would it be wise for her to use that claim in tryin
A RANDOM VOLTAGE x(t) HAS A GAUSSIAN DISTRIBUTION WITH A MEAN VALUE OF 0 V AND A STANDARD DEVIATION OF 10V. A SINGLE RANDOM SAMPLE X IS TAKEN. DETERMINE THE FOLLOWING PROBABILITIES:(a) P(X >= 0 V), (b) P(X >= 10 V), (c) P(X <= -10), (d) P(-10 V <= X <= 10 V), (e) P(absolute value of /X/ >= 10 V), (f) P(X >= 20 V), and (g) P(ab
A.)THE FORCE x(t) ASSOCIATED WITH A CERTAIN RANDOM PROCESS IS UNIFORMLY DISTRIBUTED BETWEEN THE LEVELS OF -2 N AND 6 N. PLOT THE PDF AND DETERMINE ITS LEVEL. B.)FOR THE RANDOM FORCE ABOVE, ASSUME THAT A RANDOM SAMPLE X IS TO BE TAKEN. DETERMINE THE FOLLOWING PROBABILITIES: (a) P(X = 0 N),(b) P(1.95 N <= X ,= 2.05 N),(c) P(X
A.)AN UNBIASED COIN IS FLIPPED 5 TIMES. WHAT IS THE PROBABILITY OF GETTING EXACTLY 1 HEAD ON THE 5 TRIALS? B.)WHAT IS THE PROBABILITY OF GETTING AT LEAST ONE HEAD IN THE 5 TRIALS?
For the signal of the problem pc22661, determine (a) mean-value,(b) mean-square value,(c) total rms value,(d) variance,(e) standard deviation. Repeat problem pc2261 if there are three times as many ones as zeros in a long data stream.
Question 1 (5 points) Chose a simple random sample of size five (5) from the following employees of a small company. 1. Bechhofer 4. Kesten 7. Taylor 2. Brown 5. Kiefer 8. Wald 3. Ito 6. Spitzer 9. Weiss Use the numerical labels attached to the names above and the following list of random digits. Read the
In the study of fingerprints, an important quantitative characteristic is the total ridge count for the 10 fingers of the individual. Suppose that the total ridge counts of individuals in a certain population are approximately normally distributed with a mean of 140 and a standard deviation of 50. Find the probability that
Techware Incorporated is considering the introduction of two new software products to the market. In particular, the company has four options regarding these two proposed products: introduce neither product, introduce product 1 only, introduce product 2 only, or introduce both products. Research and development costs for prod
Techware Incorporated is considering the introduction of two new software products to the market. In particular, the company has four options regarding these two proposed products: introduce neither product, introduce product 1 only, introduce product 2 only, or introduce both products. Research and development costs for prod
Average length of stay in hospital is 60 days with a standard deviation of 15. What percentage of patients stay less that 50 days? The probability is 0.9535 that a patient will stay between ____(b_____and _______(c)_______days. (Hint: to start find two z-scores equidistant from the center such that the area between th
Suppose you roll a die. If you roll an odd number, you win the dollar amount corresponding to the number of dots showing. If you roll an even number, you lose the number of dollars corresponding to the number of dots. (For example, if you roll a three you win $3. If you roll a six, you lose $6.) You pay $.50 (fifty cents) t
A commercial loan officer at a local bank estimates that she approves 10% of all small business loans for which her customers apply. Suppose 20 customers apply for small business loans this week. a. What is the expected number of loans that will be approved? b. Find the standard deviation of the number of loans approved.
The percentage 'y' of impurities per batch in a certain chemical product is a beta random variable with probability density f(y)={90y^8(1-y) if 0<=y<=1 0 elsewhere *90 is above 0 in enclosure What are the values of alpha and beta?
1.If you are dealt 3 cards from a shuffled deck of 52 cards, find the probability that all 3 cards are queens. 2. A fair coin is tossed 8 times in succession. Find the probability of getting at least 4 heads. 3. A die is rolled twice. Find the probability of getting two numbers whose sum exceeds 5. 4.How many different five-l
20% cars are green; 10 pass by; what is P that 4 are green? Please also provide formula and graph.
Problem: Complete probability and find the mean and standard dev. x=250 P(x) = .40 x= 100 P(x) = .10 x= 250 P(x) = .20 x=400
Problem: Scores for SAT normally distributed with mean of 531 and standard dev. of 114. If college includes minimum score of 600 among requirements, what % do NOT satisfy requirement? Also, graph.
Suppose that the random variable y is described by the following probability distribution function: f(y) = 2/9y for 0<or=y<or=3 and it is 0 elsewhere. a.) Find P(0.50<or=y<or=1.50) b.) Find the mean and variance of y.
A study of vehicle flow characteristics on acceleration lanes found that one out of every six vehicles uses less than 1/3 of the acceleration lane before merging into the traffic. Suppose we monitor the location of the merge for the next 5 cars that enter the acceleration lane. a.)What is the probability that none of the veh
A committee has 6 grad students (4 are men), 8 undergrads (5 are men) and 3 faculty members (1 is a man). If 1 member is selected randomly, what is the P of getting a grad student or a man?
Scott gets a hit in 32% of the hits at bat. He bats 4 times in a game (assume each at bat is independent of the others). a) What is the chance he gets a hit in all 4 at bats? b)What is the chance he gets at least 1 hit?
a)Probablity an event is likely to occur? b) P of an impossible event? c) Sample space consists of 25 separate events equally likely. What is P of each? d) True/False test. P of correct if a random guess? e)Multiple choice test with 5 possible answers for each, P of getting correcdt of random guess?
Please use Excel when necessary: Acording to a recent survey, 70% of all customers will return to the same grocery store. Suppose 10 customers are selected at random, What is the probability: a) Exactly 5 of the customers will return? b) All 10 customers will return? c) At least 7 of the customers will return? d) Less th
Please use Excel when necessary: Access time to a supercomputer mainframe is normally distributed with an average(mean) of 92 minutes a day with standard deviation of 11 minutes. Find the probability that on a certain day, the access time is: a) Less than 60 minutes b) More than 100 minutes c) Between 70 and 90 minutes
1, At Acme Inc., women employees are three times as likely to take advantage of computer training courses as men employees. Seventy percent of Acme's very large work force are women. a, What proportion of Acme employees who take advantage of computer training courses are women? b, Twelve percent of the workforce at Acme ta
The cell phone industry is growing at a rapid pace. Current estimates suggest that 60% of people have cell phones. Suppose 25 people were randomly and independently sampled. Let X be the number of people in the sample having cell phones. A) The variable X follows: aa) Normal distribution. bb) Continuous distribution. cc) Binomia
A) X~N(10,20). Then, P(X > 0)=P(X < 0)True or False.
For a randomly selected student in a particular high school, let Y denote the number of living grandparents of the student. What are the possible values of the random variable Y? (Points: 15) 1,2,3,4 4 0,1,2,3,4 0,1,2 2. When two balanced dice are rolled, 36 equally likely outcomes are
The length of time it takes to find a parking spot at the mall follows a normal distribution with a mean of 5 minutes and a standard deviation of 2 minutes. A) What is the probability that it takes more than 4 minutes to find a parking spot. B) what percent of individuals will take less than 3 minutes to find a parking s