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Habitat Protection
Natural habitats must be protected to maintain the ecological balance. According to indexmundi.com's survey in 2010, about 26% of the land in Brazil is a habitat-protected area.
Suppose a geologist randomly selects 200 regions to study soil types found in the country.
Use the Central Limit Theorem (and the Empirical Rule) to find the approximate probability that the proportion of protected regions is more than one standard error from the population value of 0.26.
The conditions for using the Central Limit Theorem are satisfied because the sample is random; the population is more than 10 times 1000; n times p is 52, and n times (1 minus p) is 148, and both are more than 10.
suppose that a standardized test has a mean of 250 and standard recitation of 80. if the test is normaaly distributed
Assume that the profit from each sale is $750 for the situation in additional problem #1. What is the expected weekly profit for a salesperson?
Assume that the weight of cereal in a "10-ounce box" is N( µ, ai). To test H0 : µ = 10.l against H1 : µ > 10.1, we take a random sample of size n = 16 and observe that = 10.4 and s = 0.4.
Determine the cost of providing care - How would you measure the cotinine level in the body? Explain the result.
What are the advantages and disadvantages of control charts for attributes over those for variables?- Discuss the significance of an appropriate sample size for a proportion-nonconforming chart.
for the following situation find the mean and standard deviation of the population. list all samples with replacement
I read that a range of expression is a set of values of a given expression. This set may consist of the whole set of cardinals numbers xy or of a proper subject of the set of cardinals (as the expression 2x, whose range is the even cardinals).
New production methods stressing teamwork have recently been instituted at car manufacturing plants in Detroit. Three teamwork production methods.
What is the probability of unemployment conditional on being male? What is the probability of unemployment conditional on being female? Calculate the mean and median wage and round your answer to 3 decimal places.
According to news reports, Las Vegas betting parlors increased the number of proposition (prop) bets available to gamblers for this year's Super Bowl (Example: Which team will be the first to suspend a starting player for a team rules violation?).
Depict the situation as a model with incomplete information, where the state of nature is the amounts in Mark and Luke's envelopes.
1. Given the information in Exercise 15.13, deter- mine and interpret the coefficients of correlation and determination for January-May burned acreage in Florida versus January-May rainfall in the state.
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