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Now suppose that the Delaware candidate for governor in the previous question contacts you and requests that you answer the question. You create and distribute a survey to randomly selected residents of Delaware. You get responses from 850 Republicans and 1,025 Democrats. After using your superior Excel spreadsheet skills, you determine that 13.2% of the Republicans and 11.9% of the Democrats surveyed have read the U.S. Constitution.
What is the highest confidence level for which you can claim that more Delaware Republicans have read the Constitution than Delaware Democrats?
(Enter your answer as a percentage, rounded to the nearest percent. For example, 0.535 would be 54%.)
A haulage contractor has two loads to deliver to separate customers. He has 4 trailers of which 2 are new. If the trailers are randomly chosen for any particular delivery: (a) In how many ways can the trailers be allocated the deliveries?
In order to estimate the average time spent on the computer terminals per student at a local university, data were collected for a sample of 81 business students over a one week period.
These questions belong to Basic Statistics and discuss about two multiple choice questions. The first question is about the appropriate use when testing hypothesis for studying groups. The second question is about computation of location of signif..
If the same sample results had been obtained from a random sample of 16 students, could the students' claim be accepted at a lower level of significance?
a researcher is trying to find out whether there is a difference in the racial mix measured as caucasian asian african
a person has a health saver plan with the likelihood of spending per year 1000 .10 2000 .20 30000.30 and 40000.4. with
Conduct a two-sample test of means. A study by a bank compared the average savings of customers who were depositors for three years or less with those who had been depositors for more than three years.
the management of is considering a new method of assembling its golf carts. the present method requires 44.6 minutes on
Public transportation and the automobile are two methods an employee can use to get to work each day. Samples of times recorded for each method are shown. Times are in minutes.
What is the approximate probability that the mean score X of these students is 23 or higher? D) Which of your two normal probability calculations in (a) and (c) is more accurate? Why?
surveys repeatedly show that about 40 of adults in the u.s. indicate that if they only had one child they would prefer
Researcher is interested in testing whether there are differences in mean between population one and population two.
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