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Find the probability that follows Binomial distribution.
If X ~ Binom (6, 0.61), what is P (X ≤ 2)?
(1) 0.2692
(2) 0.1291
(3) 0.3158
(4) 0.033
(5) 0.1656
When performing a chi-square test for independence, explain how the "cell frequencies under the independence assumption" are calculated.
Let X be the number of correct guesses by your friend in the 100 trials and Use the Normal approximation with the continuity correction - Which of the following might be reasonably modeled by the binomial distribution
Using the levels of significance given below: What is the rejection point at α = .10 and indicate if you would accept or reject H o ? t .10 =
Assume 1.5% of antennas on new Nokia cell phones are imperfect. For random sample of 200 antennas, determine the probability that: None of the antennas is defective.
Assuming that a difference (Δ) of 2 lbs. in the mean was important to detect, a maximum Type I Error (α) level of 5%, and the desire to run a two-tailed test, then:
Determine the values of mean M and standard deviation s for original sample?
Construct the 90% confidence interval for the true population proportion of all voters in the state who favor approval.
Determine what analysis would you do on each problem (i.e., one-sample z-test, one-sample t-test, proportion test, two-sample independent t-test, or paired test)?
Is the gender distribution for theater goers significantly different from the distribution for the general college? Test at the .05 level of significance.
If one item is chosen at random, determine these probabilities. It is a TV
We are interested in determining if the accident proportions differ between the two age groups:
Variance of 4.2 and mean of 23.2 were calculated. Find out 95% confidence interval on mean and standard deviation. Describe any potential problems with this analysis.
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