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Q4 - Statistics & Probability - Unit Test

Quiz by Kimberly Mae Isaac

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40 questions
Show answers
  • Q1
    True or False: When the population is large and the sample size is small, the correction factor is not used since it will be very close to 1.
    true
    false
    True or False
    30s
  • Q2
    The expression below is called
    Question Image
    Finite population correction factor
    Finite population correlation factor
    Infinite population correction factor
    Infinite population correlation factor
    30s
  • Q3
    What type of population consists of fixed number of elements, measurements, or observation?
    Finite
    Parameter
    Large
    Infinite
    30s
  • Q4
    The standard deviation of the sampling distribution of the sample mean is also known as
    Standard Center of the Mean
    Standard Deviation of the Mean
    Standard Error of the Mean
    Standard z-score of the Mean
    30s
  • Q5
    A good estimate of the mean is obtained if the standard error of the mean is
    equal to 1
    small or close to zero
    large
    more than 1
    30s
  • Q6
    When sample size (n) increases, the standard error of the mean
    decreases
    increases
    will be zero
    remain the same
    30s
  • Q7
    True or False: Population mean is always higher than the mean of the sampling distribution of sample means.
    false
    true
    True or False
    30s
  • Q8
    This consists of means derived from all possible random samples of specific size obtained from a population
    A sampling distribution of sample proportions
    A sampling distribution of sample variances
    A sampling distribution of samples
    A sampling distribution of sample means
    30s
  • Q9
    In sampling distribution of sample means, the means of the samples are less or greater than the mean of the population. What is the difference between sample mean and population mean called?
    Sampling error
    Permutation
    Standard error of the mean
    Margin of error
    30s
  • Q10
    How many possible of size n=2 can be drawn from a population of size 5?
    60
    10
    12
    120
    45s
  • Q11
    Which sample size will give a smaller standard error of the mean
    42
    25
    53
    30
    30s
  • Q12
    “As the sample size n increases, the shape of the distribution of the sample means taken with replacement from a population with mean µ and the standard deviation σ will approach a normal distribution” this statement is better known as
    The t-distribution
    The Bayes’ Theorem
    The Central Limit Theorem
    The z-distribution
    30s
  • Q13
    Given the population 1, 2, 4, 2, and 1, suppose samples of size 3 are drawn from this population. What is the mean of the population?
    3
    4
    2
    5
    45s
  • Q14
    Given the population 1, 2, 4, 2, and 1, suppose samples of size 3 are drawn from this population. What is the mean of the sampling distribution of sample means?
    5.00
    2.00
    3.00
    4.00
    45s
  • Q15
    A random sample of size n=50 measurements is obtained from a population with µ=25 σ=3. What is the standard error of the mean? (Assume that the population is infinite)
    3.00
    25
    50
    0.42
    45s

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