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As a sample size approaches infinity, how does the student's t distribution compare to the normal z distribution? When a researcher draws a sample from a normal distribution, what can one conclude about the sample distribution? Explain.
Small bag of Skittles candies has following assortment: red (12), blue (5), orange (15), brown (0), green (16), and yellow (7). Create the probability distribution for x.
Population of consumers where 30% of them favored a new product and 70% of them disliked it. If 20 persons are sampled, what are the probabilities of finding: Binomial
Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.
11.9% reported they were in fair or poor health, including 10.5% of the married people, 19.6% of widows, 16.7% of divorced or separated, 12.5% of those never married, and 14% of those living with an unmarried partner.
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...
1.an srs of 20 third grade children is selected in chicago and each is given a test to measure their reading ability.
In other words, both variables have the same mean but different standard deviations. Draw rough sketches of the two normal curves on the same graph.
What are the main difference between the frequency distribution of continuous data and discrete data.2. How would you present a continuous data as though discrete?
Suppose a social worker is involved in a study about family structure. She obtains information regarding the number of children per family in a certain community from the census data. What is the random variable of interest? Is the random variable..
Find the empirical probability that an iris bulb of this type will bloom. Give answer as a fraction in lowest terms. How many of the bulbs should she plant next fall if she would like at least 52 to bloom?
If you were to draw a scatter plot of the number of women in the workforce versus the number of Christmas trees sold in the United States for each year between 1930 and the present
lengths of pins in mm produced by a machine follow a n mu sigma 2 distribution. find the maximum likelihood estimators
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