A z score measures ________ that a point x lies from its mean .
Fill in the blank(s) with correct word
Q. 2The temperatures in degrees Celsius each day over a three week period were as follows: 17, 18, 20, 22, 21, 19, 16, 15, 18, 20, 21, 21, 22, 21, 19, 20, 19, 17, 16, 16, 17.
Compute the mean, median, and mode.
What will be an ideal response?
Q. 3The accompanying data set contains quiz scores for 12 students in a chemistry class: 18, 15, 5, 8, 15, 20, 2, 16, 10, 12, 20, 15.
a. Find a measure of central tendency that is resistant to the influence of extremely small quiz scores.
b.
Find a measure of central tendency that represents the quiz score that occurs most often.
c. Find a measure of central tendency that represents the average of the 12 quiz scores.
Q. 4The sampling distribution of a sample statistic is the distribution of the values of the statistic theoretically generated by taking repeated random samples of size n and computing the value of the statistic for each sample.
Indicate whether the statement is true or false
Q. 5If the data are approximately normal, the points will fall (approximately) on a straight line of a normal probability plot.
Indicate whether the statement is true or false
Q. 6Calculate the mean, median, and mode for the following sample: 5, 10, 6, 11, 0, 0, 10, 0.
What will be an ideal response?
Q. 7In general, the measure of central tendency that best describes a highly skewed data set is the median.
Indicate whether the statement is true or false
Q. 8Although always mound-shaped and symmetric, the exact shape of the normal curve will depend on the specific values of and z.
Indicate whether the statement is true or false
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