An iq test is designed so that the mean is 100 and the standard deviation is 1818 for the population of normal adults. find the sample size necessary to estimate the mean iq score of statistics students such that it can be said with 9595% confidence that the sample mean is within 88 iq points of the true mean. assume that sigmaσequals=1818 and determine the required sample size using technology. then determine if this is a reasonable sample size for a real world calculation.

  n=   0.0000 - 0.3750 i  

  n=   0.0000 + 0.3750 i

step-by-step explanation:

one of these should be correct

6e14 is the answer.

answerim :

n

step-by-step explanation:

im not sure but my dad knows

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.