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On the day that this poll was writen , AOL conducted an Internet poll and asked users to respond to this question: Where do you live" If a user chose to respond, he or she could choose "urban area" or "rural area". Results included 51,318 responses of "urban" and 37,888 responses of "rural". a) Use the given poll results with a 0.01 sinificance level to test the claim that most people live in urban areas b) Which of the following best describes the sample: Convience, simple random sample, random sample, voluntary response sample, stratified sample, cluster sample c) Considering the sample method used, does the hypothesis test from Part (a) appear to be valid d) Given that the size of the sample is extremely large, can this sample size compensate for a poor method of sampling e) What valid conclusion can be made from the sample results, can we conclude anything about the whole population.
Elucidate correlation coefficient of determination R-square also Adjusted R-square. A computer utility was implimentated to the data collected in a study of a generalized health.
Mean of 3 goals per game. Find the probability that each of four randomly selected state college hockey games resulted in 6 goals being scored.
An article in Parenting magazine reported that 60% of Americans needed a vacation after visiting their families for the holidays. Suppose this is the true proportion of Americans who feel this way. A random sample of 100 Americans is taken.
Enter data into SPSS (use two columns: one for coding {0, 1, 2, 3, 4, 5} and one for DV)
Determine expected cell counts if null hypothesis is true and show them in a two-way table. Determine the chi-square() statistic?
Enter relative proportions of the 3 samples in order (20,50,30) in "Expected values" area.
If there are 5 choices for a question and there is a 50% chance that the student knows the answer, what is the probability that the student knew the answer to a question he correctly answered?
Find the probability that 665 or fewer college students in the sample send and receive text messages with their phones? Is this result unusual?
Depends on the satellite information illustrate what is the expected number µ of real forest fires on the Seward Peninsula.
The sample was collected by interviewers going to people's homes in randomly chosen areas in each of the 9 countries. The population represented by this sample was:
Which of given is the correct decision statement for test?
If zero can be the first digit and the numbers can be repeated, what is the probability Mr. Jones and Mrs. Smith select the same PIN? (Round your answer to 3 decimal places.)
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