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You have an iPad and a laptop. You grab one (essentially at random), and are twice as likely to take the iPad rather than the laptop to school for the day. You also choose at random a device to do your HW on, but is three times more likely to be the laptop than the iPad. If you can't remember what device you did your HW on, what is the probability that you bring your HW to school? Make any reasonable assumptions to do the calculation.
Suppose that you want to set up a statistical test to challenge the claim of 6.7 seconds. What would you use for the null hypothesis?
For the following statement, write the null hypothesis and the alternative hypothesis. Then, label the one that is the claim being made.
For the statement: The mean amount of Pepsi in cans is at least 12 oz. Express the null hypothesis and the alternative hypothesis in symbolic form.
Using Excel, conduct a regression analysis for the following data comparing vehicle weight with fuel efficiency, including:a.?Trendline chart b.?Equation c.?Correlation Coefficient
Record the tumor grade and whether the patient was still alive one year after surgery. University Hospital County Hospital Private Hospital Which hospital has the best record?
The university policy department must write, on average, five tickets per day to keep department revenues at budgeted levels. Suppose the number of tickets written per day follows a Poisson distribution with mean of 6.5 tickets per day. Interpret ..
starting salaries of 64 college graduates who have taken a statistics course have a mean of 43500 with a standard
Classify the following as an example of nominal, ordinal, interval, or ratio level of measurement, and state why it represents this level: Gender of employees at a local warehouse.
a computer system allows user ids that are three four or five characters long. repeated characters are allowed. the
Identify the implied population in the information here. Government agencies carefully monitor water quality and its effect on wetlands
For each of the following two scenarios/descriptions (pp.2), please select two responses, one to indicate the most appropriate test of inference
Suppose that blood chloride concentration
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