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Task 2. Let's consider the "same" experiment and scoring scheme in Task 1 except that now the die is "weighted" so that the probability of getting the various rolls of the die is as follows:
Roll 1 2 3 4 5 6Probability 1/4 1/6 1/6 1/6 1/6 1/12
Find the expected value (don't forget the coin toss). In order to make a little profit in the "long run", what should your minimum charge be for the privilege of playing this game?
Formulate the null and alternative hypotheses for a hypothesis test. Identify the population and describe how to select a random sample for a hypothesis test. State in clear terms the conclusion that should be given if the null hypothesis is rejec..
A simple random sample of 400 trees is selected, and the sample mean age of these trees is computed. We know the random variable has an approximately normal distribution because of?
How many cities have a population of at least 100,000 but less than 1,000,000? What percentage of cities are in this group?
Sketch the distribution of Stanford -Binet IQ test scores. Write the equation that gives the z score corresponding to a Stanford-Binet IQ test score. Sketch the distribution of such z scores.
What is the probability that an employee will have a cold next year? Given that an employee is involved in an exercise program, what is the probability that he or she will ge a cold next year?
For each of the following statements, formulate appropriate null and alternative hypothese, indicate whether the appropriate test will be one-tail or two-tail, then sketch a diagram that shows the approximate location of the rejection region(s) fo..
In a transportation problem with 5 supply points, 3 demand points, and total supply equaling total demand, the number of decision variables will be:
What are the critical values for z on a one-tailed test if alpha = .01? .001? What would the critical values be at both levels of significance if it was a two-tailed test?
Determine the largest plausible average balance for the accounts of those using her managed fund in which you could have 90% confidence.
use two sums from part A and the computational formal to compute sum of square (SS)for the scores.
Determine whether the difference in proportions is significant at the 0.05 level.
The daily food consumption for the sample averages 18.7 with SS=2475. Using a two-tailed test at the .05 level, can the researcher conclude that temperature has an effect on eating behavior?
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