Elend went to 29 parties with a book and on average 7.9 people tried to talk to him with standard deviation of 1.49. Elend went to 29 parties without a book and on average 7.2 people tried to talk to him with standard deviation of 1.57. Find a 89% confidence interval for the average difference in how many people talk to Elend if he's reading vs not reading at a pa This needs a -Select--- v The z/t/X? score would be Which of the following equations is the right one for this test? P(1 – p) p±Z, S2 X - X, ±1 + 天ttJn P(1– p) S 土。 Vn p±Z x±Z s Vn 2 |s + X -x, ±t, n2 『+rの。 P(1– p) n+t ONone of the above

Q: 3y² - 2y-1 (-)-5y²- 2y +6

A:

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A:

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A:

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A:

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A: 18(9+7)+3

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A:

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A: 3(m-5)+m=0 3m-15+m=0 add both side 15 we get 2m=15