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Q4-QUIZ-Statistics & Probability-Module 1

Quiz by Kimberly Mae Isaac

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10 questions
Show answers
  • Q1
    What will happen to the Standard Error of the Mean if the sample size decreased from 500 to 250?
    It will decrease
    It will increase
    It will be the same
    30s
  • Q2
    What will happen to the Standard Error of the Mean if the sample size increased from 50 to 100?
    It will be the same
    It will decrease
    It will increase
    30s
  • Q3
    Which of the following measures the degree of accuracy of the sample mean as an estimate of the population mean?
    Random Sampling
    Standard Error of the Mean
    Sampling Error
    Sampling Distribution
    30s
  • Q4
    A good estimate of the mean is obtained if the standard error of the mean is
    as small or as close to zero
    equal to the mean
    not changing
    large
    30s
  • Q5
    Consider a population consisting of 5,3,6,1,2, and 4. Suppose samples of size 4 are drawn from this population. How many possible combinations could be generated?
    60
    45
    15
    30
    45s
  • Q6
    The scores of individual students on a national test have a normal distribution with the mean 18.60 and standard deviation 5.90. At Meycauayan National High School, 76 students took the test. If the scores at this school have the same distribution as national scores, what is the mean of the sampling distribution of sample means for 76 students? (Assuming that the population is infinite)
    0.24
    3.15
    18.60
    5.90
    30s
  • Q7
    The scores of individual students on a national test have a normal distribution with the mean 18.60 and standard deviation 5.90. At Meycauayan National High School, 76 students took the test. If the scores at this school have the same distribution as national scores, what is the standard error of the mean for 76 students? (Assuming that the population is infinite)
    0.08
    0.68
    5.90
    0.24
    45s
  • Q8
    Consider a population consisting of 3, 9, 3, 4, and2. Suppose samples of size 3 are drawn from this population. What is the mean of the population?
    21.00
    4.20
    2.40
    7.00
    45s
  • Q9
    A population has a mean of 25 and a standard deviation of 3. A random sample of 4 measurements is drawn from this population. Describe the sampling distribution of sample means by computing its mean. (we shall assume that the population is infinite)
    7
    75
    3
    25
    30s
  • Q10
    A population has a mean of 25 and a standard deviation of 3. A random sample of 4 measurements is drawn from this population. Describe the sampling distribution of sample means by computing its standard deviation. (we shall assume that the population is infinite)
    4.5
    3.0
    1.5
    6.0
    45s

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