uestion 1 Which of the following states that for all samples of the same size n
ID: 3179244 • Letter: U
Question
uestion 1 Which of the following states that for all samples of the same size n with n 30, the sampling distribution of the sample ot yet answered mean can be approximated by a normal distribution? oints out of 1.00 Select one: Flag question O a. Standard Normalization Theorem O b. Central Limit Theorem O C. Sample Mean Theorem O d. Population Mean Theorem uestion 2 Which of the following parameters are NOT unbiased estimators? (Select all that apply) ot yet answered Select one or more: oints out of 1.00 a. Proportion Flag question b, Mean c, Median d. Variance e. Range f. Standard DeviationExplanation / Answer
Q-1 b. Central Limit Theorem
Q-2 c. Median and e. Range
Q-3 c.
Q-4 a.
z= x-µ/
= 76-98/14=-1.5714
AND
= 95-98/14=-0.2143
Looking at the table, we get value of 0.0582 and 0.4168 for both the values respectively. Hence 0.4168-0.0582= 0.3586 or 35.86 % of the people have an IQ score between 76 and 95.
b)
-2.05=x-98/14=69.3= Minimum
2.05=x-98/14=126.7= Maximum
2.05 is the value obtained from z table for 0.02 (i.e. 2 %)
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