How many samples should be selected when the total population is 31 for goldfeld and quandt test to find the heteroscasticity??

Q: There are 4 treatments, so we have k4 and k-1- A total of 18 men undenvent Treatment 1 giving n, -…

A: The number of treatments k is 4.

Q: State the statistical hypotheses (null and alternative) for a two-tailed test against a known…

A: In this context, the known population mean is 90.

Q: Identify three ways in which the total number of observations of bivariate data can be obtained from…

A: The data from two variable of a population are called bivariate data. The distribution of the…

Q: Standard scores, such as z scores, allows us to make comparisons across different samples. Why is…

A: Standard score is the measure of the units of standard deviation between any given raw score and the…

Q: What is the portability of observing a z score between 2 and 3?

A: Let Z be the random variable from standard normal distribution i.e,  Z~ N(0, 1) ~ standard normal…

Q: If you have a Unif(0,8) distribution with a sample size of 10, how do you find the distribution of…

A: The objective of this question is to find the distribution of the largest order statistic, Y10, for…

Q: The null and alternative hypotheses would be:          Select an answer p1 μ1  Select an answer ≠  =…

A: It is claimed that, freshmen psychology majors more likely to change their major before they…

Q: In a completely randomized design, seven experimental units were used for each of the six levels of…

A: The null and alternative hypotheses are, Ho: All of the treatment means are same. H1: Not all of the…

Q: Which statistical method is used in MP and ML to evaluate the support of nodes?

A: The statistical method that can be used in MP and ML to evaluate the support of nodes must be…

Q: 14% of all college students volunteer their time. Is the percentage of college students who are…

A: Sample size n =362 Favorable cases x =36 Sample proportion p^=x/n  =36/362 =0.0994 NOTE:- According…

Q: A simple random sample of 300 men included 71 who smoke, and a simple random sample of 310 women…

A: Given: Sample sizes: Sample of men n1=300 Sample of women n2=310 Number of men who smoke X1=71…

Q: An investigator is using a chi-square test to compare the proportion of patients with a successful…

A: It is given that 25 subjects were given 4 treatments. Here we will take alpha=0.05 We need to find…

Q: 4. A researcher wishes to determine whether the blood pressure of vegetarians is, average, lower…

A: Solution: Given information: n1= 85 Sample size of vegetarian n2= 75  Sample size of non  vegetarian…

Q: A union of restaurant and foodservice workers would like to estimate the mean hourly wage, u, of…

A: given data claim : μ ≠ 8.08x¯ = 7.78s = 1.20     Accept Ho Reject Ho Ho is true correct…

Q: The 2x5 table below shows the results of a random sample of 2200 adults classified by 2 variables:…

A:

Q: A college administrator claims that 84% of college students purchase their books from the campus…

A: The type of test used is one-proportion test because the claim is to test whether 84% of college…