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Question: 1. Describe the patterns displayed by the individual sampling distributions. Then describe how the pattern changes as the sample size increases. In particular, where do the dot plots appear to center? What do you think is the true proportion of red beads in the box?
2. Calculate the variance for the sample proportions recorded in each dot plot.
a new muscle relaxant is available. researchers from the firm developing the relaxant have done studies that indicate
When calculating a confidence interval for the population mean with a known population standard deviation s describe the effects of the following two changes.
Find the for a test of the claim that the proportion with lawn mowers in Omaha is higher than 65%. Among 497 randomly selected homes.
binary communication system transmits bit 0 or 1 every bit interval. probability of transmitting bit 1 and 0 are
For commercial banks in each state, the U.S. Federal Deposit Insurance Corporation has determined the percentage of domestic assets. Construct a frequency distribution with 6 classes for this data.
A pair of random variables has a joint PDF specified by given function.- Find the marginal PDFs. -Find the conditional PDF.
the table below contains average house prices median income average monthly rent and percentage of flats that are
Five people wait to use a telephone, currently in use by a sixth person. Suppose time for the six calls (in minutes) are iid, exponential (1/3).
Find the cumulative distribution function of X.- What is the probability that either four or five orders will arrive in a given week?
You are estimating the cost ($K) of optical sensors based on the power output of the sensor. Using the preliminary calculations from a data set of 8 sensors, determine the equation of the line. (Round your intermediate calculations to 3 decimal pl..
Suppose U is a Unit (25, 50) random variable.Find the CDF of U and sketch a graph.
Test the hypothesis that the average SAT math scores from students in Pennsylvania and Ohio are different. A sample of 45 students from Pennsylvania had an average score of 552, whereas a sample of 38 Ohio students had an average score of 530.
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