Question
A study by Southpaw University claims that left-handed people are more inclined to have increased intelligence levels than their right-handed counterparts. In an attempt to
A study by Southpaw University claims that left-handed people are more inclined to have increased intelligence levels than their right-handed counterparts. In an attempt to dispute this claim a researcher sampled individuals who have I.Q. scores exceeding 140 (the level which is commonly accepted to classify someone as a "genius") and recorded their dominant hand. 10% of the world is left-handed. Based on the sample below, at a 1% level of significance, is there evidence that a higher proportion of geniuses are left-handed than the 10% seen in the world's general population.
Sample of Dominant Hand for Individuals with I.Q. Score over 140 | ||||||
Right | Right | Left | Right | Right | Right | Right |
Right | Right | Right | Right | Right | Right | Right |
Left | Right | Right | Left | Right | Left | Right |
Right | Right | Right | Left | Right | Right | Right |
Right | Right | Right | Left | Right | Right | Right |
Right | Right | Left | Left | Left | Left | Right |
Right | Left | Right | Right | Right | Right | Right |
BLANK #1: Is this a question involving mean or proportion? ***ANSWER "MEAN" OR "PROPORTION" (WITHOUT THE QUOTATION MARKS)***
BLANK #2: Which type of distribution should be used to calculate the probability for this question? ***ANSWER "NORMAL", "T", OR "BINOMIAL" (WITHOUT THE QUOTATION MARKS)***
BLANK #3: Which of the following options are the appropriate hypotheses for this question: ***ANSWER WITH THE CORRECT LETTER,WITHOUT ANY QUOTATION MARKS OR BRACKETS***
A) H0: = 10% H1: > 10%
B) H0: = 10% H1: < 10%
C) H0: = 10% H1: 10%
D) H0: p = 10% H1: p > 10%
E) H0: p = 10% H1: p < 10%
F) H0: p = 10% H1: p10%
BLANK #4: What is the p-value of this sample? ***ANSWER TO 4 DECIMALS, BE SURE TO INCLUDE LEADING ZERO, EXAMPLE "0.1234"...NOT ".1234"***
BLANK#5: At a 1% level of significance, is there evidence that a higher proportion of geniuses are left-handed than the 10% seen in the world's general population? ***ANSWER "YES" OR "NO" (WITHOUT THE QUOTATION MARKS)***
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