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Q1) Waiting time, in hours, between successive speeders spotted by radar unit is continuous random variable with cumulative distribution function
F(x) = 0, x < 0,
= 1 - e^(-8x) x ≥ 0.
Determine probability of waiting less than 12 minutes between successive speeders
i) By using cumulative distribution function of X.
ii) By using probability density function of X.
At 0.05 level of significance, is there evidence of noteworthy difference in variation in sales among different aisle locations?
A random sample of students is selected, and each one is asked to try first brand A and then brand B, or vice versa with the order determined at random.
If the mean IQ of all Omega University students was equal to 115, and a small random sample of students was selected from the population whose mean IQ was 120, then this difference of 5 points would equal the:
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
Suppose you had flipped a fair coin 19 times and "tails" had come up each time. The probability of now tossing a "head" on the 20th flip would then be:
The random variable x is known to be uniformly distributed between 1.0 and 1.5.
The average number of putts per hole for each player and their average driving distance is used to predict their total winnings using the multiple regression model where the deviations εI are assumed to be independent and Normally distributed with..
The probability of obtaining a random sample mean, which is lower than the population mean, is:
What was the highest score earned on the exam? According to Chebyshev's Theorem, how many students scored between 42 and 74?
Determine percent of the garages take between 29 hours and 34 hours to erect? Determine percent of garages take 28.7 hours or less to erect?
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