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Please read instructions how to solve the problem. Please explain how the answer was solve problem 1 a-e problem 2 a-f
1. Determine the critical value for a left-tailed test of a population mean at the α=0.005 level of significance based on a sample size of n = 30. A) 2.750 B) 2.756 C) -1.699 D) -2.756 E) None of these 2. If beta is computed to be 0.763 , then the p..
The mean weekly income of residents of one state is $570. A random sample of 12 residents of one small town in the state yielded the following weekly income in dollars
The normal distribution is a type of probability density function. Areas found under this curve are equivalent to probabilities. For example, the probability that z lies between a and b is denoted P(a
Mars, Inc. claims that 24% of its M&M plain candies are blue. A sample of 100 M&Ms is randomly selected. Find the mean and standard deviations for the number of blue M&Ms in such a group of randomly selected 100 candies.
this assignment requires a considerable amount of computer work and written comment. you may need to seek guidance from
A. In a recent sample of 84 used car sales costs, the sample mean was $6,425 with a standard deviation of $3,156. Assume the underlying distribution is approximately normal. a. Which distribution should you use for this problem? Explain your choice...
(Proportions) Federal Prison Populations - Nationally, 60.2% of federal prisoners are serving time for drug offenses. A warden feels that in his prison the percentage is even higher. He surveys 400 randomly selected inmates' records and finds that 26..
In a poll, 51% of he people polled answered yes to the question "are you in favor of the death penalty of a person convicted of murder?" the margin of error in he pole waa 2% and the estimate was made with 95% confidence. At least how many people wer..
Prepare a report (see below) with your ranking of the judges based on the probabilities and conditional probabilities as well as the analysis of each court. Include the following seven (7) items in table format to support your ranking. Be sure to use..
Find the proportion of Mastercard holders who have VISA cards. Interpret and write this proportion as a conditional probability.
Find the probability of schizophrenia given that Hinckley's CAT scan showed brain atrophy. In this situation, how strong is the case that Hinckley suffered from mental illness?
a study was conducted to estimate hospital costs for accident victims who wore seat belts. twenty randomly selected
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