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    Multiple choice questions

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    1) IF the sampled population has a mean 48 and standard deviation 16, then the mean and the standard deviation for the sampling distribution of x-bar for n=16 are:
    2) Consider two population distributions labeled A and B. Distribution A is highly skewed and non-normal, while the distribution B is slightly skewed and near normal. In order for the sampling distributions of A and B to achieve the same degree of normality:
    Choices:
    Population A will require a larger sample size
    Population B will require a larger sample size
    Population A and B will require the same sample size.

    3) A manufacturing company measures the weight of boxes before shipping them to the customers. If the box weights have a population mean and standard deviation of 90 lbs and 24 lbs respectively, then based on a sample size of 36 boxes, the probability that the average weight of the boxes will exceed 94 lbs. is:
    Choices
    34.13%
    84.13%
    15.87%
    56.36%
    16.87%

    4) The population of all sample proportions has a normal distribution if the sample size is sufficiently large. The rule of thumb for ensuring that is sufficiently large is:
    Np>5
    N(1-p)>5
    Bo</5
    N(1-p)</.5 and np</5
    Np>/5 and n(1-P)>/5

    5) The t distribution approaches the ______ as the sample size ________.
    Choices:
    Binomial, increases
    Binomial, decreases
    Z, decreases
    Z, increases

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    https://brainmass.com/statistics/normal-distribution/multiple-choice-questions-157422

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    1) IF the sampled population has a mean 48 and standard deviation 16, then the mean and the standard deviation for the sampling distribution of x-bar for n=16 are:

    Mean= 48
    Standard deviation of sampling distribution of mean= standard deviation / sauare root of sample size
    = 16 / square root of 16 = 16/4 = 4

    2) Consider two population distributions labeled A and B. Distribution A is highly skewed and non-normal, while the distribution B is slightly skewed and near normal. In order for the sampling distributions of A and B to achieve the same degree of normality:
    Choices:
    Population A will require a larger sample size
    Population B will require a larger sample size
    Population A and B will require the same ...

    Solution Summary

    Answers to Multiple choice questions on sample means, standard deviation, sample size, normal distribution, t distribution

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