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Find the confidence interval for the population proportion. Many people think that a national lobby's successful fight against gun control legislation is reflecting the will of a minority of Americans. A random sample of 4000 citizens yielded 2225 who are in favor of gun control legislation. Estimate the true proportion of all Americans who are in favor of gun control legislation using a 99% confidence interval.
The expense ratio of a mutual fund measures the percentage of the fund's assets used to pay for annual administrative overhead. Funds with higher ratios spend more of the fund's return to operate the fund.
With a sample standard deviation of 200 pounds. We know the sample is from a normal distribution. The 95% confidence interval of the true mean is?
How can comparing between k- means and cluster tree by criteria or test statistics in sas program And what is the statistics rule can be use
State the null hypothesis H 0 and the alternative hypothesis H 1 that we would use for this test. Determining null and alternative hypotheses for the height of a plant.
Critically illustrate out the characteristics of a standard normal distribution? Can two distributions with the same mean and different standard distributions be considered normal?
If customers arrive according to a non-stationary Poisson process with rate function λ(t) = sin(t) + 5, is the time between the arrivals an exponential distribution?
why is the f distribution important? how do you determine if a significant difference exists among the groups in anova?
The sample mean and standard deviation are 20 days and 4 days, respectively. Using a confidence interval of 90%, construct the interval.
A study to get a quick idea of the medical acceptability of a new aspirin substitute which cannot be dispensed over the counter without prescription.
If two televisions are randomly selected, compute the probability that both televisions work. What is the probability at least one does not work?
A. What is the probability of discovering that your five best friends all have cellphone numbers ending in 7?
What should the mean and standard deviation be if these were uniformly distributed random integers? Need to find Mean and Standard Deviation?
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