Confidence Interval Estimation Multiple Choice Questions (MCQ) PDF - 56

MCQ 276: If the point estimate is 8 and the margin of error is 5 then the confidence interval is

1. 3 to 13
2. 4 to 14
3. 5 to 15
4. 6 to 16

MCQ 277: The three times of difference between mean and median is divided by standard deviation to calculate coefficient of skewness by method of

1. Professor Keller
2. Professor Bowley
3. Karl Pearson
4. Professor Kelly

MCQ 278: The probability distribution of discrete random variable is classified as

1. probability mass function
2. posterior mass function
3. interior mass function
4. continuous mass function

MCQ 279: The standard normal probability distribution has mean equal to 40, whereas the value of random variable x is 80 and the z-statistic is equal to 1.8 then the standard deviation of standard normal probability distribution is

1. 120
2. 80
3. 40
4. 20

MCQ 280: If a brown sack consists of 4 white balls and 3 black balls then the probability of one randomly drawn ball will be white is

1. 4 ⁄ 7
2. 1 ⁄7
3. 4 ⁄ 4
4. 4 ⁄ 3