your solutions on the space provided. Some items may need interpretations. For items 1-3, refer to the problem below. Ms. Sanchez sells chocolate bars. She claims that a bar contains 25 grams of...

Need help to find the population mean.

Need some formula and also some explanation thank you

Extracted text: your solutions on the space provided. Some items may need interpretations. For items 1-3, refer to the problem below. Ms. Sanchez sells chocolate bars. She claims that a bar contains 25 grams of chocolate. A consumer wanted to know if her claim is true. The result is shown as follows; 24 20 23 23 22 25 25 26 27 25 23 20 27 24 23 25 22 21 21 26 25 21 28 24 23 25 22 24 25 27 26 24 21 25 22 24 21 25 24 25 24 23 25 25 21 23 20 24 26 24 1. What is the best point estimate for the population mean? 2. Using 99% confidence, what is the interval estimate of the population mean? 3. Interpret your answer in item #2.


Extracted text: Shift For items 14-17, refer to the problem below. A random selection of Grade 12 students was asked whether they enjoyed going to school or not. Those who responded with "1" are the Grade 12 students who enjoyed going to school, and "0" for those who did not enjoy going to school. 1 1 1 1 1 0. 1 0. 1. 0. 0. 0. 1 0. 0. 0. 0. 0. 1 1 0. 1 1 0. 0. 0. 0. 1 0. 1 1 1 1 0. 0. 0. 0. 1 1 1 1 1 1 14. What is the proportion of the grade students who enjoyed going to school? 15. Interpret your answer in item #14. 16 Use 90% confidence level to estimate the proportion of all Grade 12 students who enjoyed going to school. 17. Interpret your answers in item #16. For items 17-21, refer to the problem below. A sample of 1,325 commuters are surveyed about whether traffic enforcers help reduce heavy traffic. 862 commuters disagreed. 18. What is the proportion of the commuters who agrees that traffic enforcers help reduce heavy traffic? 19. Interpret your answer in item # 18. 20. Use 95% confidence to estimate the proportion of the commuters who disagree that traffic enforcers help reduce heavy traffic. 21. Interpret your answer in item # 20. MN B