Statistics Midterm Review Name The next three questions concern
... Which histogram above would best represent the distribution of soda consumed the week before the survey was taken? 14. If a bar graph is to be accurate, it is essential that (a) the bars touch each other. (b) the bars be drawn vertically. (c) both horizontal and vertical scales be clearly marked in ...
... Which histogram above would best represent the distribution of soda consumed the week before the survey was taken? 14. If a bar graph is to be accurate, it is essential that (a) the bars touch each other. (b) the bars be drawn vertically. (c) both horizontal and vertical scales be clearly marked in ...
ch4_variability1
... the average of this value (divided by N) is what we term the standard deviation (on average, how much do scores in the data set differ from the mean) Here’s where we start: ...
... the average of this value (divided by N) is what we term the standard deviation (on average, how much do scores in the data set differ from the mean) Here’s where we start: ...
Examples are
... A measure of location, such as the mean or the median, only describes the center of the data. It is valuable from that standpoint, but it does not tell us anything about the spread of the data. For example, if your nature guide told you that the river ahead averaged 3 feet in depth, would you want t ...
... A measure of location, such as the mean or the median, only describes the center of the data. It is valuable from that standpoint, but it does not tell us anything about the spread of the data. For example, if your nature guide told you that the river ahead averaged 3 feet in depth, would you want t ...
Introduction to Hypothesis Testing One-sample test for
... Example: Ha: µ < 98.6F (average body temperature is less than 98.6) Logic behind the hypothesis testing: The jury trial of an accused murderer is analogous to the statistical hypothesis process. The null hypothesis in a jury trial is that the accused is innocent. The status quo hypothesis in the US ...
... Example: Ha: µ < 98.6F (average body temperature is less than 98.6) Logic behind the hypothesis testing: The jury trial of an accused murderer is analogous to the statistical hypothesis process. The null hypothesis in a jury trial is that the accused is innocent. The status quo hypothesis in the US ...
Lab 9: z-tests and t-tests
... mean-that is, are the students in this school comparable to a simple random sample of 55 students from the region as a whole, or are their scores surprisingly low? Also calculate a 95% confidence interval based on this sample. (from Wikipedia) ...
... mean-that is, are the students in this school comparable to a simple random sample of 55 students from the region as a whole, or are their scores surprisingly low? Also calculate a 95% confidence interval based on this sample. (from Wikipedia) ...
