3 error her confidence no more than 2 6, what is the minimum number of su ects o
ID: 3361347 • Letter: 3
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3
error her confidence no more than 2 6, what is the minimum number of su ects or or 95 % interval to be Points out of at he needs o recur [Note: The researcher has no expectations about what the sample proportion should be ahead of time, so she - and get the most conservative estimate.] 1.00 you-should use p- 0.5 to P Flag question Answer Question 3 A 2001 study asked 1 924 male and 3,666 female undergraduate college students their favorite color A 95% confidence Inter a forte difference between the proportions of males and females whose favorite color is black (Pmale - Ptemale) was calculated to be (0.02, 0.06). Based on this information, determine if the following statements are true or false. Not yet answered Points out of 1.00 F Flag question We are 95% confident that the true proportion of males whose favorite color is black is 2% lower to 6% higher than the true proportion of females whose favorite color is black Choose The 95% confidence interval for Gpfemale-Pmale) cannot be caculated with the given hormation. Choose 95% of random samples will produce 95% confidence intervals that include the true difference between the population proportions of males and females whose favorite color is black. Choose. A 2010 survey asked 827 randomly sampled registered voters in California "Do you support or do you oppose drilling for oil and natural gas off the Coast of California? Or do you not know enough to say?" Below is the distribution of responses, separated based on whether or not the respondent graduated from college. Question 4 Not yet answered Points out of 0.50 College Grad Yes No y FlagExplanation / Answer
1) False. It is 2% higher to 6% higher. Both 0.02 and 0.06 are positive
2) False. It can be calculated, only the point estimate needs to be reversed
3) True. If repeated samples are taken, 95% will contain the true population proportion difference. This is the in essence the interpretation of confidence interval.
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