What is it meant by the term “parameter of a population”? Explain why a population can be represented by a random variable.What is a point estimate, and an unbiased point estimate? Explain how the sample mean can be an unbiased estimate of the population mean. How do you justify that the sample variance is an unbiased estimate of the population variance? What is the sampling requirement in the latter case? Provide a numerical example of estimating the mean, the variance, and the standard deviation.Please define each of the following terms, discuss applicability and significance of each: sample statistic, standard error, sampling distribution, and central limit theorem. Include hypothetical examples for better clarity. What is the z statistic and what qualifies a statistic to be z statistic based on the central limit theorem and the basic properties of normal distributions? What are the limitations of the central limit theorem, and how some of these limitations are bypassed? For example, the z statistic as the sampling distribution in estimating a proportion.What is the sampling distribution in estimating the variance of a population? What are the properties of this distribution?What is the alternative of z statistic for normally distributed populations which eliminates some limitations of the central limit theorem? How this sampling distribution is constructed as a combination of a z distribution and a chi squared distribution? What are the properties of this distribution? (To provide numerical examples to answer questions mentioned above, for example, in the third item above, you can use the Excel function RAND to generate a sample of a uniform random variable, and the combination of RAND and NORM.INV to generate a sample of a normal random ).Please use APA format with peer reviewed references .

HCAD 640 Assignment 3: Budget Instructions: You are the administrator of the medical - surgical department at UMGC Health. Review the transcripts from the budget meeting and recent voicemails from your CFO and, using the available information and resources, develop an operating budget for your department. Your budget should include a 2-4 page document with an accompanying Excel spreadsheet that: Provides the revenue and expenses through the current month of the current year. Estimates the revenue and expenses for the rest of the current fiscal year based on the assumptions provided in the transcript documents

Use SPSS to answer the research question. Post your response to the following:What is your research question?What is the null hypothesis for your question?What research design would align with this question?What dependent variable was used and how is it measured?What independent variable is used and how is it measured?If you found significance, what is the strength of the effect?Explain your results for a lay audience and further explain what the answer is to your research question.