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d) What does this interval suggest about any gender-based difference in manual agility? O A. With 98% condence, the mean number of pegs placed by

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d) What does this interval suggest about any gender-based difference in manual agility? O A. With 98% condence, the mean number of pegs placed by females is greater than the mean number of pegs placed by males by an amount in the interval. O B. With 98% condence, there is no difference in the mean number of pegs placed by males and females. 0 C. With 98% condence, the mean number of pegs placed by males is greater than the mean number of pegs placed by females by an amount in the interval. e) The two results seem contradictory. Which method is correct: doing two-sample inference, or doing onesample inference twice? 0 two-sample inference O one-sample inference twice f) Why don't the results agree? 0 A. Using two different condence intervals adds the variances instead of the standard deviations. The two-sample difference of means procedure takes this into account. O B. The two-sample difference of means procedure adds the standard deviations instead of the variances. Using two different condence intervals takes this into account. 0 C. Using two different condence intervals adds the standard deviations instead of the variances. The two-sample difference of means procedure takes this into account. O D. The two-sample difference of means procedure adds the variances instead of the standard deviations. Using two different condence intervals takes this into account. StatCrunch Tech Help Time Remaining: o1;27;43 m . . . . . . .. . Male Female A Afactory hiring people to work on an assembly line gives Job applicants a test of manual agility. ThIs test counts how many Number of sub'ects 40 40 strangely shaped pegs the applicant can t into matching holes in a oneminute period. The table to the right summaries Fe 5 Iaced- J the data by gender of the job applicant, Assume that all conditions necessary for inference are met. Complete parts a Mean p ' 19 95 18 04 thmugh f' so 2.13 3.11 v a) Find 98% condence intervals for the average number of pegs that males and females can each place. ' The 98% condence interval for males is ( , I). (Round to two decimal places as needed.) The 98% condence interval for females is (El, :l). (Round to two decimal places as needed.) b) If those intervals overlap, what does this suggest about any gender-based difference in manual agility? O A. It may appear to suggest that there is no difference in the mean number of pegs placed by males and females, but a two-sample t-interval should be constructed to assess the difference in mean number of pegs placed. 0 B. The intervals do not overlap. O C. It may appear to suggest that there is a difference in the mean number of pegs placed by males and females, but a two-sample t-intervai should be constructed to assess the difference in mean number of pegs placed. 1:) Find a 98% condence interval for the difference in the mean number of pegs that could be placed by men and women. The 98% condence interval for the difference omen \"women is (D,|:|). (Round to two decimal places as needed.) d) What does this interval suggest about any gender-based difference in manual agility? StatCrunch Tech Help Time Remaining: 01:27:52 m

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