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The mean value of land and buildings per acre for a sample of farms is $1200, with standard deviation of $200. The data set has a bell shaped distribution. Summer number of farms in the sample is 73.
(A) Use the empirical rule to estimate the number of farms who's land and building values per acre are between $800 in $1600. Open parenthesesRound to the nearest whole number as needed)
(B) If 27 additional farm for sampled about how many of these additional forms would you expect to have land and building values between $100 per acre in 16 her dollars per acre? (Round to the nearest whole number as needed)
How would you explain the analysis of variance, assuming that your audience has not had a statistics class before?
if y is a random variable that has an f distributions with v1 numerator and v2 denominator degrees of freedom show
In biostatistics, hypothesis testing is used to determine the likelihood of observing a particular value of a sample statistic. Confidence intervals provide a measure of accuracy by allowing us to define a range within which the true population param..
Apparently, some of your classmates do not understand Statistics very well because you know several of their conclusions are incorrect. Explain the mistakes in their statements below.
Refer to the probability distribution for the sum of two dice. What is the value of P(X ≤ 4)? What does this probability measure? Explain what is measured by the value of 1 - P(X ≤ 4).
If there are no large cost disadvantages, the data suggest that we should proceed. B) Technical issue: Does the treatment effect depend on the past average sales?
He gets a result of 1.5. He then rounds the result to 2, saying that it is not possible to get 1.5 girls when three babies are born. Is this reasoning correct? Explain.
a. How many factors are involved? How many levels are there for each factor? How many trials will be required for a single replicate of the experiment? Can a test for lack of fit be obtained?
Suppose you want to determine the mean number of students per statistics class in your state. Describe a possible sampling method in three to five complete.
Montarello and Martens (2005) found that fifth-grade students completed more mathematics problems correctly when simple problems were mixed in with their regular math assignments.
a report states that 46 of home owners had a vegetable garden. how large a sample is needed to estimate the true
a warehouse distributor of carpet keeps 6000 yards of deluxe shag carpet in stock during a month. the average demand
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