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How large are hamster litters? Among 47 golden hamster litters recorded, there were an average of 7.72 baby hamsters, with a standard deviation of 2.5 hamsters per litter.
a) Create and interpret a 90% confidence interval.
b) Would a 98% confidence interval have a larger or smaller margin of error? Explain.
c) How many litters must be used to estimate the average litter size to within 1 baby hamster with 95% confidence?
Critically discuss some examples of descriptive statistics? Why are they used in research? What is a confidence interval?
Review "Simulation Case Study: Phoenix Boutique Hotel Group" for this topic's case study, in which you provide guidance to Phoenix Boutique Hotel Group (PBHG) founder Bree Bristowe.
A client has an investment portfolio with mean value is equal to 4500 USD, with a standard deviation of 300 USD. What is the probability that the value of her portfolio is between 3900 USD AND 5400 USD?
James Burke claims that about 70% of all single men would welcome a women taking the initiative in asking for a date. A random sample of 20 single men were asked if they would welcome a women taking the initiative in asking for a date.
Identify a business research topic and Define the research questions for the identified problem or opportunity
What is the connection between speaking, listening, reading and writing? What are some of the principles that effective educators can use to help support these skills?
during each summer many families spent part of their vacation time at a beach along the east or west coast. due to the
Basing ?ndings on 60 successful pregnancies involving natural birth, an experimenter found that the mean pregnancy term was 274 days, with a standard deviation of 14 days. Construct a 99% con?dence interval for the true mean pregnancy term μ.
Design an experiment to test the hypothesis that single-gender math classes are beneficial to adolescent females. Construct operational definitions of both the independent and dependent variables.
heinz plays catch-up after under-filling ketchup containers is the headline of an article that appeared on cnn.com
The random variables X1, X2, and X3 are independent and Exp(1)- distributed. Compute the correlation coefficient ρX(1) ,X(3). Let X1 and X2 be independent, Exp(a)-distributed random variables.
(a) Find P{N(t) = n}. (b) Is {N(t)} a Poisson process? (c) Does {N(t)} have stationary increments? Why or why not? (d) Does it have independent increments? Why or why not?
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