Suppose you have 36 observations, the smallest and largest of which are 127.5 an

Question

Suppose you have 36 observations, the smallest and largest of which are 127.5 and 280.6, respectively. Apply the accompanying procedure to choose classes for cutpoint grouping. Use eight classes. Choose the class width by rounding the calculated approximate class width up to the nearest multiple of 5. Choose the lower cutpoint of the first class by rounding the minimum observation down to the nearest multiple of 5 Click the icon to view the procedure for choosing classes Choosing the Classes Classes for cutpoint grouping under under under One way that we can choose the classes to be used for grouping a quantitative data set is to first decide on the (approximate) number of classes. From that decision, we can then determine a class width and, subsequently, the classes themselves. Several methods can be used to decide on the number of classes. One method is to use the guidelines below, based on the number of observations under [ ] under » under under Number of observations 25 or fewer 25-50 Over 50 Number of classes 5-6 7-14 15-20 -under [ ] (Use ascending order.) With the preceding guidelines in mind, use the step-by-step procedure below for choosing the classes Enter your answer in the edit fields and then click Check Ans Step 1 Decide on the (approximate) number of classes Step 2 Calculate an approximate class width using the value below and use the result All parts showing

Explanation / Answer

Range= 280.6-127.5 =153.1

Frequancy width= Range/ No of intervals= 153.1/ 8 =19.1375

Min Max 125 144 145 164 165 184 185 204 205 224 225 244 245 264 265 284

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.