Questions 1 to 10 are true or false questions and count 3 points each and questi

Question

Questions 1 to 10 are true or false questions and count 3 points each and questions 11 to 19 are 5 points each 01) The normal distribution is centered at the mean. 02) The area under the normal curve left of the mean is 5 03) The Z value or Z seore is computed from this equation 04) The mean & median are less than the mode in a normal distribution. 05) The area under the normal curve from -2sZs1 is approximately .1359 The two Z scores such that the area bounded by them is approximately equal to 68.2% of the normal curve are ±1. 07) If the computed Z value is negative, you definitely have made a mistake in you calculations. value of 1 indicates that 8413 of the area under the normal curve is to the 08) A Z 09) A positive Z value gives you the number of standard deviations a specitied 10) If Z =-3; -58 and x 43, then the standard deviation will be 5. Question 11 to 14: Write your final answer on the answer sheet. 11) Find the area under the normal curve given P(-2.78 sZs-1.66) 12) Find the area under the normal curve given. P(1400 xs 2250) whem 13) Find the Z score given the area under the normal curve If this Z score is right of the Z value. value of x, is from the mean. 1200 and 600 normally distributed with a mean of 0 and a standard deviation of I find the value of b, knowing the probability Z ,9922? 14) Find Z so that 25.78% of the standard curve lies to the left of Z.

Explanation / Answer

Q 1: True

Q 2: False, its 0.5 not -0.5, for are there is no negative sign

Q 3. True

Q 4 False, For normal distribution, Mean=Median= Mode

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