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In a survey of 900 college students , 405 out of 900 students has credit card or 45% of the student owned a credit card. a. In a sample of five students, what is the probability that two will have their own credit card? b. In the sample of six students, what is the probability that at least two will have their own credit card? c. In the sample of 10 students, what is the probability that at none will have their own credit card?
Difference between the variances in assembly times (in seconds) of employees trained in a computer-assisted, individual-based program and those trained in a team based program?
Descriptive statistics (5-number summary, mean, mode, range and standard deviation) for each of the four variables along with an explanation of what the descriptive statistics tell us about the motion picture industry.
Plot each of the predictors against the response. Plot the predictors against each other. The purpose here is to get a graphical idea of the relationships in the data.
How many turnstiles must be opened in each direction every morning and describe the suppositions underlying the solution of this problem by using queuing theory.
What is the difference in proportions in the original data and what is the p-value and what does it mean in terms of this specific problem
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
A sample of 10 executives indicated that they spent an average of $11.30 with a sample standard deviation of 0.56 on lunch. Let = 0.05. What are the critical values?
What is the probability that at least 10 pay cash - Davids gasoline station offers 4 cents off per gallon if a customer pays cash and does not use a credit card.
Calculate the regression equation for this data
Determine the factors in the bag-sealing equipment that might be affecting the ease of opening the bag without tearing the inner liner of the bag.
Identify sample, population, sampling frame (if applicable), and response rate (if applicable). Describe sampling technique (if applicable) or experimental design
Compute the expected time until the 100 th student arrives. What is the probability that the time between the arrival of the 200th and the 201st student exceeds 2 days?
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