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    Statistics Interview Questions & Answers

    Below we have listed all the Statistics Interview Questions and answers. Feel free to comment on any Statistics Interview Questions or answer by the comment feature available on the page.

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    What is the importance of statistics in nursing?
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    How might the standard deviation (S) of a normal distribution be greater than the mean? a. S is given by a square root, and the square root is larger than the fraction. b. In a normal distribution, the variance must equal the mean. c. If some scores are negative, the mean could be very small despite a large S. d. The median would have to be less than the skew.
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    In error bar charts the larger the confidence interval the _____ the line is through the mean. 1. More curved 2. More overlapping 3. Shorter 4. Longer
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    What are the Key terms used in statistics?
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    The correlation between a person's hair length and score on the midterm is very nearly zero. If your friend has a crewcut, your best guess as to what he got on the midterm is a. the standard deviation of scores on the midterm b. the mean minus the standard deviation c. the mean plus the standard deviation d. the mean score
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    What is the correlation between a person's hair length and score on the midterm is very nearly zero. If your friend has a crewcut, your best guess as to what he got on the midterm is ?
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    Which of the following type of graph can display confidence intervals? 1. Venn diagrams. 2. Histograms. 3. Error bar charts. 4. Regression lines.
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    To calculate confidence intervals we need make use of: 1. Sampling distributions. 2. Histograms. 3. z-scores. 4. None of the above.
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    How you can claim that there is a significant difference between scores from two groups?
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    In a class of 100, the mean on a certain exam was 50, the standard deviation, 0. This means a. half the class had scores less than 50 b. there was a high correlation between ability and grade c. everyone had a score of exactly 50 d. half the class had 0's and half had 50's
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    What is the probability 1 in 12 expressed as a percentage? 1. 0.0833 2. 0.12 3. 0.2 4. 0.0012
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    In a truly normal frequency distribution a. the mean always is the same as the standard deviation b. the mean is never the same as the mode c. the mode is never the same as the median d. the mean always is the same as the median
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    If you have a negative z-score it will be below the mean. * True * False
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    The null hypothesis in an experiment would be a. there is a high correlation between the independent and dependent variables b. changing the independent variable has no significant effect on the dependent variable c. changing the dependent variable causes a significant change in the independent variable d. the standard error of the dependent variable is greater than the mean of the independent variable
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    Sampling distributions tend to be what in shape? 1. Bimodal. 2. Positively skewed. 3. Normal. 4. Flat.
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    What kinds of norm-referenced reliability statistics are appropriate for questionnaires?
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    How does the coefficient of determination put the interpretation of correlation coefficients into perspective?
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    Suppose the mean on the final exam is 24 (of 40), with a standard deviation of 1.5. If you get a 21, how well do you do (relative to the rest of the class)? a. very poorly--perhaps the lowest score b. not well, but somewhere in the C's c. OK--about average d. nicely--better than the median
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    There is a low (but real) negative correlation between the amount of rain in a given summer and the amount the summer before. In the absence of any information except that this summer is wetter than usual, you are asked to guess next summer's rain. Your best guess a. somewhat more than the average summer rainfall b. the average summer rainfall c. somewhat less than the average summer rainfall d. the standard deviation of the rainfall
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    In another study you have a standard deviation of 12, a mean of 20 and a sample size of 50. What is the standard error? 1. 0.089 2. 0.069 3. 1.7 4. 0.589
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