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A researcher estimates the mean life span for a species. they sampled 36 people and found they lived for a mean of 4.5 years. the researchers sample had a SD of 1.2 years. construct a 99% CI for the population mean
A consensus of experts has agreed on the following table of potential NPVs and their likelihoods for a capital budgeting project that involves considerable uncertainty and is therefore risky:
Assuming a standard deviation of 5 minutes and a simple random sample of 50 persons who filled out the long form, what is the probability that their average time for completion of the form was more than 45 minutes?
Assuming the manufacturer's claim is true, what is the probability the consumer group's sample has a mean life of 52 or fewer months?
A class contains 30 students. Ten are female (F) and U.S. citizens (U); 12 are male (M) and U.S. citizens; 6 are female and non-U.S. citizens (N); 2 are male and non U.S. citizens. A name is randomly selected from the class roster and it is female..
Suppose the probability that Bill can solve a problem is p1 and the probability that Mike can solve it is p2. Show that the probability that Bill and Mike.
At the 0.05 significance level, test the claim that the distribution of crashes conforms to the distribution of ages. Does any age group appear to have a disproportionate number of crashes?
What developmental milestones and behaviors signify an adolescent's attempt to transition from parental dependence to independence?
q1 define what the chi square distribution is. why do you use the chi-square statistic? what type of data is used
Additionally, method of delivery of drug (patch,pill, or nasal mist) was considered. In experiment, there were how many treatments?
the number of people living in a hypothetical large canadian city is reported by age groups in the following table.age
Find the 95% confidence interval of the mean score for all golfers if this is a sample of 110 golfers instead of a sample of 93.
1.p.t. barnum is concerned about the health of his star trapeze artist. if the artist is capable of performing a triple
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