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Death penalty, again. In the survey on the death penalty you read about in the chapter, the Gallup Poll actually split the sample at random, asking 510 respondents the question quoted earlier, Generally speaking, do you believe the death penalty is applied fairly or unfairly in this country today? The other 510 were asked Generally speaking, do you believe the death penalty is applied unfairly or fairly in this country today? Seems like the same question, but sometimes the order of the choices matters. Suppose that for the second way of phrasing it, only 54% said they thought the death penalty was fairly applied.
a) Construct a 95% confidence interval for the true proportion of adults who approve of the way the death penalty is currently applied, according to the responses for this second question.
b) Recall that 60% of the respondents in the other random half of the study said that the death penalty is applied fairly. Does a proportion of 0.60 fall inside the confidence interval you just found?
A scientist wants to estimate the proportion of plants with berries growing in a particular region. They want to be within 6% of the true proportion.
Determine the point estimate of the population proportion, the margin of error for the following confidence interval and the number of individual in the same with the specified characteristics, x for the sample size provided.
(a) Let random variable X, have an Exponential distribution with pdf : f(x) = βe-xβ, x > 0. Derive mgf of X, denoted as mX(t). Be sure to note the bounds on constant, t.
Standard deviation of 14 inches. What is the probability that the mean annual snowfall will be between 70 and 80 inches.
If a randomly selected student has a score of 40, then how many standard deviations away from the mean is that student's score?
They then call these 100 people. Does this sampling plan result in a random sample? Simple random sample? Explain.
What is a measure of central tendency? Distinguish between the mean, median, and mode.- What is a measure of variability? Distinguish between the standard deviation and the range.
Please complete the following assignment. For all questions, please respond in at least three complete sentences. 1. What was so different about Chinese religion and why? 2. What was similar about nearly all ancient religions and why?
salt-free diets are often prescribed to people with high blood pressure. the following data values were obtained from
Find the equation satisfied by the apsidal distances. Given that the orbit of P is an ellipse with centre O, find the semi-major and semiminor axes of this ellipse.
You have been working for a physician in private practice for 8 months. You start to see a pattern with several of his workers' compensation cases. Some of these patients seems to have more tests and procedures ordered than others with similar con..
Is the normality assumption that was made at the beginning valid and what is the probability that the stock on that day closed at less than the mean for that year
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