Test the claim that the mean GPA of night students is larger than 3.2 at the .05 significance level. The null and alternative hypothesis would be: Ho:p= 0.8 Ho:u = 3.2 Ho:H = 3.2 Ho:p= 0.8 Ho:p= 0.8 Ho:µ = 3.2 o H1:p<0.8 H1:u < 3.2 H1: u > 3.2 H1:p# 0.8 H1:p > 0.8 H1: u # 3.2 %3D %3D %3D The test is: two-tailed right-tailed left-tailed o Based on a sample of 45 people, the sample mean GPA was 3.21 with a standard deviation of 0.02 The test statistic is: (to 2 decimals) The critical value is: (to 2 decimals) Based on this we: Reject the null hypothesis O Fail to reject.the null hypothesis Ovestien

Q: Why is the response rate an important consideration in survey? And give some examples to…

A: If response rate is low, results may notdemonstrate the population as well as if response rate was…

Q: How to Evaluation of the p -Value Approach?

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: What is a T-Test? How is it applied to a Single Population Data Set?

A: Student's t-test was given and first used by W.S. Gosset in 1908. The statistician W.S. Gosset is…

Q: Explain Multiple Observation Summary of Z-test?

A: A Z-test is a statistical test, used to determine whether two population means are different when…

Q: How do I solve for the mean, quartile 1 and 3?

A: To calculate the mean, median, mode, quartile 1 and quartile 2 of the given data, we should first…

Q: Which variable is the explanatory variable and which variable is the response variable? ? Explain…

A: Let X be the teen birth rate and Y be the people living in poverty.

Q: True or False: For both AIC and BIC (two statistics we often use to compare model fit), the model…

A: Solution: AIC ( Akaike's Information Criteria ) and BIC ( Bayesian Information Criteria ) are the…

Q: how will you relate the formulas for quartiles and deciles of grouped data?

A: The formula for the ith quartile is: Qi=L+in4-cff.w Where L is lower bound of the class, c.f is…

Q: What is determining the worth of data? Evaluation Validity Results

A: What is determining the worth of data? Evaluation Validity Results

Q: Aqualitative predictor variable for political party has possible valuesDemocratic, Republican, and…

A:

Q: Find the value of the x² test statistic

A: Based on the observed and expected values and expected values,the squared distances can be computed…

Q: how do i find quartile 1 in a set of data?

A: First quartile: The first quartile is the middle-most observation or median of the lower half of the…

Q: Explain the concept of standardize the predictor variable ?

A: Standardization is the process of putting different variables on the same scale. The standardization…

Q: How do I go through the data screening process using 2 categorial and 2 quantitative variables?

A: Data screening for categorical variables:1. Check for Missing data.2. Test for association among the…

Q: How to summarise data(scores)with decriptive statistical techniques

A: Descriptive statistics are brief descriptive coefficients that summarize a given data set, which can…

Q: How can the use of existing data and statistics help researchers? What are the benefits of using…

A: Here we have to explain how the statistics helps researchers in analyzing or using the existing…

Q: List the steps involved in analyzing quantitative data and how would I define and provide examples…

A: Steps to conduct Quantitative Data Analysis: Relate measurement scales with variables Connect…

Q: Estimate sensitivity, specificity, positive predictive value, negative predictive value and…

A: Solution

Q: Explain what is meant when we say that a quantitative predictor variable and a qualitative predictor…

A:

Q: Define Percentiles, Quartiles and decile computation using examples and the practical usage for…

A: Solution :  Percentiles : Percentiles divide the data set into groupings of 1%. Standardized tests…

Q: What are some of the key aspects to consider when collecting and preparing data for statistical…

A: Data collection: It is the process of collecting information on variable of interest for statistical…

Q: Why do we retain that a sample represents the underlying raw score population if the sample mean is…

A: We are asked one question regarding hypothesis testing. The question is "Why do we retain that a…

Q: Describe Ethnography Design and when to use this qualitative research method?

A: QR is used for generating new ideas for research.

Q: e using scatterplot. How to distinguish betwee

A: Let us consider a multivariate dataset to visualize to distinguish between the attributes: This open…

Q: Please submit the answer via a PDF document or Word document. **Independent t-test** Use the…

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any…

Q: Explain the Critical Z score.

A:

Q: Illustrate Test the difference between a complete and reduced model for significance?

A:

Q: When can you use the Chebyshev criterion, and when you cannot? If the Cebyshev criterion cannot be…

A: Chebyshev criterion is used if the data does not follows the normal distribution. Chebyshev…

Q: What is normalcy of data how we can examine it, discus the reliability of the construct.

A: Normal data are data that are drawn (come from) a population that has a normal distribution. This…

Q: The interquartile range is the best measure of variability for nominal data. true false

A:

Q: What are the Four Steps to use when working with the t-test ?

A: The Four Steps to use when working with the t-test with p-value approach is given below: Step 1:…

Q: How can you say that Mode Always Appropriate for Qualitative Data?

A: