In a study of performance ratings of ex-smokers, a random sample of 34 ex-smokers had a mean rating of 2.21and a sample standard deviation of 2.21.for an independent random sample of 86 long-term ex-smokers, the mean rating was as 1.47 and the sample standard deviation was 1.69. find the lowest level of significance at which the null hypothesis of equality of the two population means can be rejected against the two-sided alternative

Which of the following is a justification used while proving the similarity of triangles lom and mon

What is the length of the unknown leg in the right triangle ?

The equation of a circle is (x - 3)2 + (y - 7)2 = 25. determine the length of the radius. 4 25 12.5 5 write the standard equation of the circle with center (2, 3) and a diameter of 12. (x - 2)2 + (y - 3)2 = 36 (x + 2)2 + (y + 3)2 = 12 (x - 2)2 + (y - 3)2 = 6 (x - 3)2 + (y - 2)2 = 36 the equation of a circle is (x + 3)2 + (y + 7)2 = 25. where is (3, 4) located in relation to the circle? on the circle in the interior of the circle in the exterior of the circle at the center of the circle