15. -9 points Devorest819 1.E 045 My Notes Ask Your Teache An article described

Question

15. -9 points Devorest819 1.E 045 My Notes Ask Your Teache An article described an experiment in which observations an various characteristics were made using minichambers of three different types: (1) cooler (PVC frames covered with shade cloth), (2) control (PVC frames only), and (3) warmer (PMC frames covered with plastic). One of the artice's authors kindly supplied the accompanying data on the difference between air and soil temperatures (C) Cooler Control Warmer 2.57 2.60 1.93 58 2.30 0.84 2.65 0.17 2.74 2.53 2.13 2.86 2.31 1.91 1.59 1.43 88 1.26 1.91 86 1.90 1.57 1.79 1-72 2.41 2.34 0.79 1·34 1.76 92 2.00 2.19 12 1.78 .84 2.45 2.03 52 0.53 1.90 (a) Compare measures of center for the three different samples Cooler i- Control " warmer . (b) Calculate the standard deviations for the three diffarent samples. (Round your answers to three decimal places. Cooler s- Control S- Warmer Interpret and compare the standard deviations for the three different samples O We soo from the standard deviations that variability increases when the conditions of of the mini-chambers transitions from the cooler to the control and decreases when the conditions transition from the control to warmer. we see from the standard deviations that there is no difference in variability between the three conditions. We see from the standard deviations that variability increases as the conditions of the minichambers transition from cooler to warmer We see from the standard deviations that variability increases as the conditions of the minichambers transition from warmer to cooler We see from the standard deviations that variability decreases as the conditions of the minichambers transition from cooler to warmer (c) Do the fourth spreads for the three samples convey the same message as do the standard deviations about relative variability? Yes, The fourth spreads do communicate the same message as the standard deviations did O No, The fourth spreads do not communicate the same message as the standard deviations did.

Explanation / Answer

Cooler Control Warmer 1.59 1.92 2.57 1.43 2 2.6 1.88 2.19 1.93 1.26 1.12 1.58 1.91 1.78 2.3 1.86 1.84 0.84 1.9 2.45 2.65 1.57 2.03 0.17 1.79 1.52 2.74 1.72 0.53 2.53 2.41 1.9 2.13 2.34 2.86 0.79 2.31 1.34 1.91 1.76 Mean 1.703 1.753 2.080 Standard deviation 0.407 0.531 0.768 Interpretation :- We see from the standard deviation that variability increases as the conditions of the minichambers transition from cooler to warmer. c) Yes

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

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