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1. A psychologist claims that the mean age at which female children start walking is 11.4 months. If 20 randomly selected female children are found to have started walking at a mean age of 11.5 months with standard deviation of 2 months, would you agree with the psychologist's claim? Assume that the sample came from a normal population.
2. Let U1 and U2 be independent random variables. Suppose that U1 is χ2 with ν1 degrees of freedom while U = U1 + U2 is chi-square with ν degrees of freedom, where ν > ν1. Then prove that U2 is chi-square random variable with ν - ν1 degrees of freedom.
Cite an example of your experience with applying Six Sigma tools for Statistical significance in the workplace. If you do not have an actual example, suggest a situation or context in which the tools would provide valuable quality improvement help..
Explain what the confidence interval represents in the context of the problem - Write down the regression equation?
A fast food chain restaurant chain claims that lunch will be served within nine minutes of placing your order, or it is free. A sample of eight customers revealed the following waiting times in minutes:
The Positively Charged company uses capacitors from two different manufacturers. Historically, 60% of the capacitors come from manufacturer 1
Faced with rising Fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.
How can I conduct statistic experimental design for three independent variable (time, amount, temperature) are useful to predict Y? Please include any approach steps and How can I interpreted?
question 1nbspinbsp describe and distinguish between discrete and continuous variable.iinbsp a kfc shop in port-louis
Search the internet for examples of how categorical data is used in the workplace. As a hint, type "categorical data" followed by a topic of interest to you into the search engine.
What is the probability that no requests for assistance are in the system? What is the average number of requests that will be waiting for service? What is the average waiting time in minutes before service begins?
What is the expected value of the probability distribution? What is the variance of the probability distribution?
the number of complaints that a discount store receives on their product per week is a random variable having poisson
Which of the following does not explain a possible relationship between variables when the null hypothesis is rejected?
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