ผลต่างระหว่างรุ่นของ "Probstat/homework 3"
ไปยังการนำทาง
ไปยังการค้นหา
Jittat (คุย | มีส่วนร่วม) |
Jittat (คุย | มีส่วนร่วม) |
||
| แถว 1: | แถว 1: | ||
: ''This is part of [[probstat]].'' | : ''This is part of [[probstat]].'' | ||
| − | == Poisson and exponential random variables == | + | == Part 1: Poisson and exponential random variables == |
| − | == Hypothesis testing == | + | == Part 2: Hypothesis testing == |
| − | 1. We are interested in testing | + | 1. We are interested in testing if a normally-distributed population has mean zero. We know that the variance of the population is 17. If we decide to take a sample of size 15, design a hypothesis testing procedure with the level of significance <math>\alpha=5%</math>. State the null hypothesis clearly and describe the criteria for accepting/rejecting the null hypothesis. |
| − | State the null hypothesis clearly and describe the criteria for accepting/rejecting the null hypothesis. | + | 2. We are interested in testing if a normally-distributed population has at least 100. We know that the variance of the population is 30. If we decide to take a sample of size 10, design a hypothesis testing procedure with the level of significance <math>\alpha=5%</math>. State the null hypothesis clearly and describe the criteria for accepting/rejecting the null hypothesis. |
| − | == Regression == | + | == Part 3: Regression == |
รุ่นแก้ไขเมื่อ 15:09, 8 ธันวาคม 2557
- This is part of probstat.
Part 1: Poisson and exponential random variables
Part 2: Hypothesis testing
1. We are interested in testing if a normally-distributed population has mean zero. We know that the variance of the population is 17. If we decide to take a sample of size 15, design a hypothesis testing procedure with the level of significance . State the null hypothesis clearly and describe the criteria for accepting/rejecting the null hypothesis.
2. We are interested in testing if a normally-distributed population has at least 100. We know that the variance of the population is 30. If we decide to take a sample of size 10, design a hypothesis testing procedure with the level of significance . State the null hypothesis clearly and describe the criteria for accepting/rejecting the null hypothesis.
