assignmentutor™您的专属作业导师

assignmentutor-lab™ 为您的留学生涯保驾护航 在假设检验hypothesis testing作业代写方面已经树立了自己的口碑, 保证靠谱, 高质且原创的统计Statistics代写服务。我们的专家在假设检验hypothesis testing代写方面经验极为丰富，各种假设检验hypothesis testing相关的作业也就用不着 说。

• 时间序列分析Time-Series Analysis
• 马尔科夫过程 Markov process
• 随机最优控制stochastic optimal control
• 粒子滤波 Particle Filter
• 采样理论 sampling theory

统计代写|假设检验代写hypothesis testing代考|Hypothesis testing for a one-sample mean

Consider a sample of size $n$ that is selected from a normally distributed population and $Y$ represents a random variable of interest. A claim regarding the mean value of the variable of interest when the variance of the population $\left(\sigma^2\right)$ is unknown and the sample size is small $(n<30)$ can be tested employing a t-test for one sample mean to make a decision regarding the mean value. The mathematical formula for computing the test statistic value for one sample mean when the variance of the population $\left(\sigma^2\right)$ is unknown and the sample size is small $(n<30)$ employing the t-test is presented in Eq. (3.1).
$$t=\frac{\bar{Y}-\mu_0}{S / \sqrt{n}}$$
Follow t distribution with $(n-1)$ degrees of freedom, where $\bar{Y}$ represents the sample mean, $\mu_0$ represents the claimed value (hypothesized mean), $S$ represents the sample standard deviation, and $n$ represents the sample size used.

The computed test statistic value obtained from the sample data (3.1) is used to make a decision to reject or fail to reject the null hypothesis regarding the mean value of the variable of interest. The procedure to make a decision is to compare the test statistic value with the theoretical value (critical value) of the $t$ distribution or using t distribution curve.

Example 3.4: The concentration of trace metal iron in the air: A researcher at an environmental section wishes to verify the claim that the mean concentration of trace metal iron $(\mathrm{Fe})$ on coarse particulate matter $\left(\mathrm{PM}_{10}\right)$ in the air is $0.36\left(\mu \mathrm{g} / \mathrm{m}^3\right)$ during the summer season of an equatorial urban coastal location. Twelve samples were selected, and the concentration of iron was measured. The collected data showed that the mean concentration of iron is $0.44$ and the standard deviation is 0.34. A significance level of $\alpha=0.01$ is chosen to test the claim. Assume that the population is normally distributed.

统计代写|假设检验代写hypothesis testing代考|What is Bernoulli distribution

A distribution that describes the results of an experiment with only two outcomes is called Bernoulli distribution and the experiment is called a Bernoulli experiment. The two results of Bernoulli experiments are called success and failure; success happens with probability $p$ and the complement of success is the failure which happens with probability $q=(1-p)$, for example, present or absent, dead or alive, normal or defective. For instance, testing one sample of water wells for pesticide residues whether the water wells that supply drinking water showed positive or negative results regarding the pesticide.

The probability distribution for a Bernoulli variable is called Bernoulli distribution having the mathematical formula given in Eq. (4.1).
$$P(Y)=p^Y q^{1-Y}, Y=0,1$$
where, 0 represents the failure $q=(1-p)$ and 1 represents the success $p$.
Or it can be written as
$$P(Y)=\left{\begin{array}{cc} 1-p & Y=0 \ p & Y=1 \end{array}\right.$$

假设检验代写

统计代写|假设检验代写hypothesis testing代考|单样本均值的假设检验

$$t=\frac{\bar{Y}-\mu_0}{S / \sqrt{n}}$$

统计代写|假设检验代写hypothesis -testing代考|什么是伯努利分布

$$P(Y)=p^Y q^{1-Y}, Y=0,1$$

$$P(Y)=\left{\begin{array}{cc} 1-p & Y=0 \ p & Y=1 \end{array}\right.$$

有限元方法代写

assignmentutor™作为专业的留学生服务机构，多年来已为美国、英国、加拿大、澳洲等留学热门地的学生提供专业的学术服务，包括但不限于Essay代写，Assignment代写，Dissertation代写，Report代写，小组作业代写，Proposal代写，Paper代写，Presentation代写，计算机作业代写，论文修改和润色，网课代做，exam代考等等。写作范围涵盖高中，本科，研究生等海外留学全阶段，辐射金融，经济学，会计学，审计学，管理学等全球99%专业科目。写作团队既有专业英语母语作者，也有海外名校硕博留学生，每位写作老师都拥有过硬的语言能力，专业的学科背景和学术写作经验。我们承诺100%原创，100%专业，100%准时，100%满意。

MATLAB代写

MATLAB 是一种用于技术计算的高性能语言。它将计算、可视化和编程集成在一个易于使用的环境中，其中问题和解决方案以熟悉的数学符号表示。典型用途包括：数学和计算算法开发建模、仿真和原型制作数据分析、探索和可视化科学和工程图形应用程序开发，包括图形用户界面构建MATLAB 是一个交互式系统，其基本数据元素是一个不需要维度的数组。这使您可以解决许多技术计算问题，尤其是那些具有矩阵和向量公式的问题，而只需用 C 或 Fortran 等标量非交互式语言编写程序所需的时间的一小部分。MATLAB 名称代表矩阵实验室。MATLAB 最初的编写目的是提供对由 LINPACK 和 EISPACK 项目开发的矩阵软件的轻松访问，这两个项目共同代表了矩阵计算软件的最新技术。MATLAB 经过多年的发展，得到了许多用户的投入。在大学环境中，它是数学、工程和科学入门和高级课程的标准教学工具。在工业领域，MATLAB 是高效研究、开发和分析的首选工具。MATLAB 具有一系列称为工具箱的特定于应用程序的解决方案。对于大多数 MATLAB 用户来说非常重要，工具箱允许您学习应用专业技术。工具箱是 MATLAB 函数（M 文件）的综合集合，可扩展 MATLAB 环境以解决特定类别的问题。可用工具箱的领域包括信号处理、控制系统、神经网络、模糊逻辑、小波、仿真等。

assignmentutor™您的专属作业导师
assignmentutor™您的专属作业导师