**Educational Content for Statistical Analysis:**---**Variance and Confidence Intervals in Sample Data**1. **The estimated variance of the sample mean is:** a. 143.21 b. 155.66 c. 15752.64 d. 14492.42 2. **The margin of error for the 95% confidence interval is:** a. $28.70 b. $26.09 c. $23.72 d. $21.56 3. **The 95% interval estimate for the mean rent is:** a. $1,069 - $1,174 b. $1,081 - $1,162 c. $1,091 - $1,152 d. $1,098 - $1,145 4. **If you were asked to narrow the 95% margin of error to $10, how many apartments would you need to include in your sample? For planning, use the sample standard deviation above.** a. 702 b. 706 c. 654 d. 606 ---**Note on Confidence Intervals and Margin of Error:**- Confidence intervals are used to estimate the range within which a population parameter lies, based on sample data.- The margin of error indicates the range’s precision and is used to express the variability in estimates.**Questions 13 & 14**The following scenario is related to finding statistical estimates:- A random sample of full coverage auto insurance policy costs is given.- This data is used to build a 95% interval estimate for the mean cost of a full coverage policy.---This content provides insights into statistical estimation techniques, emphasizing the estimation of population parameters based on sample data, variance, and confidence intervals. **Educational Website Transcription:**---**Questions 6-10 are related to the following**As a statistics course assignment, you are to build a 95% confidence interval for the mean monthly rental for two-bedroom apartments in Marion County. A random sample of apartments yields the following data:| 1065 | 1110 | 1085 | 1145 | 1165 | 1295 | 1175 | 945 | 1215 | 1195 ||------|------|------|------|------|------|------|------|------|------|| 1070 | 990 | 1180 | 1145 | 1175 | 1085 | 1155 | 1275 | 1105 | 985 || 1380 | 1150 | 860 | 1115 | 1125 | 1495 | 1035 | 900 | 820 | 1140 || 1165 | 1300 | 1265 | 1175 | 1300 | 1120 | 1280 | 1075 | 955 | 1145 || 1170 | 1030 | 1170 | 1265 | 1210 | 1300 | 940 | 1090 | 1170 | 1195 || 1305 | 1235 | 1125 | 1235 | 1265 | 1020 | 1145 | 1285 | 1185 | 1065 || 1035 | 1375 | 1105 | 1115 | 1050 | 1270 | 960 | 965 | 1170 | || 1120 | 875 | 1325 | 960 | 1300 | 1195 | 1145 | 1085 | 1170 | || 1110 | 1055 | 1185 | 1120 | 1035 | 1175 | 1275 | 860 | 870 | 1025 || 1150 | 1125 | 975 | 985 | 1085 | 1105 | 1125 | 1020 | 1145 | 1145 || 1370 | 970 | 1225 |

Here, there are 110 observations. That is, n = 110.

Answered: Questions 6-10 are related to the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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