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1. A fair coin was flipped three times and landed heads three times. What is the probability of a head on the next toss?
2. A bag contains five red candies, six white candies, and seven blue candies. Suppose one piece of candy is drawn at random. Find the probability for each of the following:
a. A white candy is drawn. b. A red or blue candy is drawn. c. Neither a white nor a blue candy is drawn.
3. A box contains three blue cards and three white cards. If two cards are drawn one at a time, find the probability that both cards are blue if the draws are made as follows:
a. With replacement b. Without replacement
For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.
An experiment was carried out to assess the effects of four tomato varieties and four planting densities on yield. There were 64 plots, and each of the 16 factor combinations was randomly assigned to 4 plots
A sample of 160 workers in the downtown area classified each worker by race. A bar graph of the results is given below, but the bar for black workers in the graph below has been omitted.
What is the approximate estimated bootstrap standard error of the median, What is the approximate bias of the median estimated from bootstrapping - What is the bootstrap t confidence interval for the median
At α = .05, is there a difference in variances? Illustrate all steps clearly, including the illustration of the decision rule.
What is Peter's median grade point at graduation? What is the shape of the grade point distribution?
A statistics instructor wants to know which route will get her to school the fastest. Each day from October 2 to November 15, when she gets to the turn point she checks the odometer on her car
Make a scatter plot, illustrate the regression lines. Determine the correlation coefficient between husband’s and wife’s education for couples in which wife is employed full time?
Using the dataset, produce a graph of per capita GDP for Argentina, China, and Canada from 1965 to 1995. Is inequality between these countries increasing?
Assuming the nurses surveyed were a random sample from the population of all nurses in the United States, we can use these data to test the null hypothesis H0 that there is no association between the row and column variables in this two-way table...
Problems on Sampling Variability and Standard Error and Confidence Intervals
When using past data, I have found that the proportion of items rejected by quality control personnel is about 3%. We normally make 5000 items per day. For a p chart, what are the upper and lower control limits?
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