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1) In a sequence of 10 independent Bernoulli trials, where the probability of success is .4, what is the expected number of failures? (Variance?)
2) If a bernoulli random variable x is defined so that success is given a value 10 and failure is given the value 5, and P(success) = .6, what is the expected value of X?
Find the value of q-hat from proportion and degrees of freedom used to find the t-score.
a) Determine the proportion of instances that the duration was less than 240 seconds. Also express the proportion as a percent. (hint: proportion is number of successes divided by total number.)
Of the students who scored around 50 on the midterm, about what percentage were in the top 25% of the class on the final?
in a statistical test the probability of making type i and type ii error were found to be 0.0234 and 0.6 respectively.
given that fz 1radic2pie-z22 -infin lt z lt infin is the probability density function for the standard normal random
using one proportion z test to determine whether or not to support the claim.a delivery truck brings in a shipment of
for a normal distribution that has a mean of 100 and a standard deviation of 8determine the z-score for each of the
acute rotavirus diarrhea is the leading cause of death among children under the age of 5 killing an estimated 4.5
Based on a sample of 49 students, Healthy Lifestyles Incorporated (HLI) would like to apply the central limit theorem to ma ke various estimates. a) Compute the standard error of the sample mean. (Round your answer to 2 decimal places.)
A researcher wants to determine a 95% confidence interval for the mean number of hours that UMKC students spend doing homework per week.
Suppose I have an experiment with 5 groups and 5 DVs and intend to conduct MANOVA to determine if there are mean differences between groups,
a manufacturer of disk drives for notebook computers wants a mtbf of at least 50000 hours. recent test results for 15
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