Elementary Statistics: A Step by Step ApproachGeared toward the student without a strong mathematical background, this text uses a non-theoretical approach in which concepts are explained intuitively and are supported by examples. Students majoring in such fields as natural and social sciences, business, economics, and computer science will understand how statistics applies to their chosen field through the use of examples drawn from such disciplines. |
From inside the book
Results 1-3 of 71
Page 96
... score or z score . A standard score or z score for a value is obtained by subtracting the mean from the value and dividing the result by the standard deviation . The symbol for a standard score is z . The formula is z = For samples ...
... score or z score . A standard score or z score for a value is obtained by subtracting the mean from the value and dividing the result by the standard deviation . The symbol for a standard score is z . The formula is z = For samples ...
Page 100
... score on an English final examination was 85 , with a standard deviation of 5 , and the av- erage score on a history final exam was 110 , with a standard deviation of 8. Which class was more variable ? The average age of the nurses at ...
... score on an English final examination was 85 , with a standard deviation of 5 , and the av- erage score on a history final exam was 110 , with a standard deviation of 8. Which class was more variable ? The average age of the nurses at ...
Page 102
... Scores on the Test of English as a Foreign Language Scaled Score 68 66 99 64 96 62 92 60 88 58 82 56 75 54 66 52 57 50 45 48 34 46 23 44 15 42 40 38 36 34 32 **** 2020 220mg Immon 2- 91 8 5 FIND VIR ~ Structure and Total Score ...
... Scores on the Test of English as a Foreign Language Scaled Score 68 66 99 64 96 62 92 60 88 58 82 56 75 54 66 52 57 50 45 48 34 46 23 44 15 42 40 38 36 34 32 **** 2020 220mg Immon 2- 91 8 5 FIND VIR ~ Structure and Total Score ...
Contents
The Normal Distribution | 239 |
CHAPTER 15 | 465 |
HYPOTHESISTESTING SUMMARY 3 | 509 |
Copyright | |
7 other sections not shown
Other editions - View all
Common terms and phrases
automobile average number binomial distribution brand chapter chi-square Class Boundaries column Compute the test confidence interval Construct correlation coefficient critical value Cumulative Frequency data set data values degrees of freedom difference digits equal error of estimate example expected value F test False female Find the critical Find the mean find the probability formula frequency distribution H₁ Hence independent Kruskal-Wallis test median midpoint MINITAB n₂ normal distribution null hypothesis number of values obtained outcomes parameter percentile population mean prob probability distribution Procedure Table random numbers random sample rank regression line reject the null relationship represent sample means sample space score selected at random shown in Figure Solution STEP specific standard deviation standard error statistics Subtract Summarize the results test the claim test value tree diagram true type I error variable variance Wilcoxon signed-rank test X₁