A survey found that out of 2613 adults, 1772 played on game consoles; while out of...
A survey found that out of 2613 adults, 1772 played on game consoles; while out of 1395 teens, 904 played on game consoles. Based on this survey, can you say there is a difference between adults and teens for playing on game consoles? Use alpha = 0.05.
State the null and alternative hypotheses
Calculate the test statistic
Calculate the p-value or give a range of p-value, as appropriate.
Draw the appropriate conclusion in the context of the problem.
Calculate a confidence interval for the difference. Use the level of confidence that matches the hypothesis test you conducted above at the alpha = 0.05 significance level.
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A survey found that out of 2613 adults, 1772 played on game
consoles; while out of...
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In a study of self-medication, a simple random sample of 1230 adults completed a survey. The surv...
In a study of self-medication, a simple random sample of 1230 adults completed a survey. The survey reported that 441 of the adults had a cough during the past month. (a) What hypotheses should be tested to find out whether, in the population from which the sample was drawn, less than half of the adults had a cough during the past month? (b) Choose an appropriate test, check assumptions, and find the p-value. (c) Make a decision at the α...
please help Problem 1: Use the following to answer questions a) – e): In a survey...
please help
Problem 1: Use the following to answer questions a) – e): In a survey conducted by the Gallup organization September 6-9, 2012, there were 1,017 adults asked "In general, how much trust and confidence do you have in the mass media - such as newspapers, TV, and radio - when it comes to reporting the news fully, accurately, and fairly?" Of the 1,017 respondents, 214 said they had "no confidence at all." The research question: Does this sample...
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7. The Pew Research Center conducted a survey of 1007 adults and found that 856 of...
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please help
Problem 1: Use the following to answer questions a) – e): In a survey conducted by the Gallup organization September 6-9, 2012, there were 1,017 adults asked "In general, how much trust and confidence do you have in the mass media - such as newspapers, TV, and radio - when it comes to reporting the news fully, accurately, and fairly?" Of the 1,017 respondents, 214 said they had "no confidence at all." The research question: Does this sample...
7. The Pew Research Center conducted a survey of 1007 adults and found that 856 of them know what Twitter is. Use a 0.04 significance level to test the claim that more than 75% of adults know what Twitter is. Do not use the p-value.
1. Recall the survey you took during the first week of class. One of the questions was "do you agree that it is inappropriate to speak on a cellphone while at a restaurant?" of the 1913 females that responded to the survey, 1729 agreed with this statement. Of the 1276 males that responded to this survey, 1111 agreed with this statement. Test to see if there is any difference between males and females with respect to how they feel about...
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