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A poll done for Newsweek found that 13% of Americans have seen or sensed the presence of an angel. A contingent doubts that the percent is really that high. It conducts its own survey. Out of 100 Americans surveyed, only 3 had seen or sensed the presence of an angel. As a result of the contingent's survey, at a 5% level of significance, would you agree with the Newsweek poll?
In your answer, show your hypothesis [you must use the Ho and Ha format to get credit], your calculated z or t score, and your decision to reject or fail to reject the null hypothesis.
for the following data xy806144364651sketch a scatterplot to show the relationship between x and y. what does the
Find the questions based on multiple regression - The coefficient of determination for the above model is approximately
suppose that a car rental agency offers insurance for a week that will cost 10 per day. a minor fender bender will cost
State the hypotheses for a chi-squared test in the context of this problem. Calculate the expected matrix and describe what it represents. Calculate the test statistic. Describe what this represents and answer the question posed.
Heights are sampled of kids from three schools. Using a 0.05 significance level, if when looking at ANOVA results, your p-value is 0.04, what can you say about your sample data? no minimum word count.
The sample mean price is computed from the prices at these gas stations. What is the probability that the sample mean price falls within a nickel of the State's overall mean price? i.e between 3.09 and 3.19.
what is the probability that you will need to wait for more than a minute before observing the next arrival?- What is the probability you will need to wait at least two minutes?
Effects of Tariffs Assume a simple world in which the United States exports soft drinks and beer to France and imports wine from France.
Suppose that 30 percent of computer owners use a Macintosh, 50 percent use Windows, and 20 percent use Linux. Suppose that 65 percent of the Mac users have succumbed to a computer virus, 82 percent of the Windows users get the virus, and 50 ..
a car manufacturer is concerned about poor customer satisfaction at one of its dealerships. the management decides to
representatives of the franklin insurance company take medical information over the phone from prospective policy
a final exam in math 160 has a mean of 73 with a standard deviation of 7.8. 40 students are randomly selected and
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