What is the correct way to write up the findings? O t(3) = -2.00, p < .05 %3D O t(2) = -2.00, p > .05 %3D O t(2) = -2.00, p < .05 O t(3) = -2.00, p > .05

Q: 2c) What is research hypotesis? -what is primer data and secondary data? -what is the differences…

A: Research is "creative and systematic work undertaken to increase the stock of knowledge.

Q: When do you need to calculate and use a Z - Score? What are the assumptions when you use a Z score?

A: We have to find need of calculate and use of z score..

Q: When data are collected in a statistical study for only a portion or subset of all elements of…

A: A sample is a part of the population, which is selected from the population and if the sample is…

Q: 3. How was the data collected?

A: Data collection is an important part because the whole analysis will depend upon the collected data.…

Q: IQ scores for subjects with medium lead levels in their blood and another sample of subjects with…

A: Mann-Whitney U test: The Mann-Whitney U test is non-parametric statistical method that is used for…

Q: hat is the possible range of values for Pearson's coefficient of skewness?

A: Here  For Perason coefficient of Skewness

Q: How to calculate variance?

A: We can find the variance for population and variance for sample.First we will see how to find the…

Q: Comparing a census of a large population to a sample drawn from it we expect that the

A: We know, Sample is usually a more practical method of obtaining the desired information.

Q: What is the observed z/t-score? The Center for the Study of Violence wants to determine whether…

A:

Q: To adjust our estimate of variability we subtract 1 from the sample size because we expect samples…

A: Introduction: Suppose a population consists of N units. Then, the formula for the population…

Q: What is an example of a statistical presentation ? Can you tell me what is it telling me ? What…

A: In statisics, graphs are helpful in presenting the statistical data. In order to improve the…

Q: Suppose that you have bivariate data for a sample of a population. a. How would you decide whether…

A:

Q: A researcher calculates the variance of her sample to be s = -6. , what would you tell the…

A: Here's the explanation for this as follows; The sample variance, s², is used to calculate how varied…

Q: A sample of 46 observations gave sample mean 20 and coefficient of variation 0.6 Then the sample…

A: Given  n=46, Xbar=20, CV=0.6

Q: 3)   In a paired samples t test, explain the logic of difference scores (why do you need to find…

A: Given A paired samples test with difference score and μ as  0 We considered population mean to be μ

Q: discuss the limitation of correlation analysis.

A: Correlation: Correlation is a measure which indicates the “go-togetherness” of two data sets. It can…

Q: 6. Which of the graphical procedures for qualitative data do you prefer? Why?

A: The qualitative data is the data which cannot be expressed in the numbers. For example: gender,…

Q: Suppose you are interested in studying regional differences in crime rates.  You take a random…

A: Given that; South n = 100 X1 = 55 ?1 2 = 5.78 North  n = 100 X2 = 50 ?2 2 = 6.72 By using two sample…

Q: If a researcher takes a large enough sample, he/she will almost always obtain: practically…

A: Sample size is an important consideration for any study.  Larger sample sizes provide more accurate…

Q: Human body temperatures have a mean of 98.60° F and a standarddeviation of 0.62° F. If Sally’s body…

A: Let X be the human body temperatures that follows normal distribution with mean of 98.60-degree F…

Q: Provide an example of a research project in your hometown where the one-sample chi-square test would…

A: A chi square test is used to test the comparison between observed and expected results. The main…

Q: A stock analyst wondered whether the mean rate of return of financial, energy, and utility stocks…

A: Given the mean rate of return of financial, energy and utility stocks as   Financial  Energy…

Q: When results from a scholastic assessment test are sent to test-takers, the percentiles associated…

A: Given: 99th percentile  for their verbal grade

Q: The margin of error in a research study is indicative of the precision and accuracy of the research…

A: Statement: The margin of error in a research study is indicative of the precision and accuracy of…

Q: 2.What does a x score of - 1 for a data value x represent

A: Given: z-score=-1

Q: According to the JPM Riskmetrics analysis report, the return on a UK-based portfolio is bigger than…

A: A t test can be used to test the claim that the population mean is equal to the claimed value or…

Q: Explain Multivariate Relationships among Items?

A: Multivariate regression attempts to determine a formula that can describe how elements in a vector…

Q: at is the relevance of statistical methods in summarizing d

A: What is the relevance of statistical methods in summarizing data?

Q: 5. What conclusions can you draw from the data gathered from one small bag compared to several small…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: How is a z-score obtained? What is the interpretation of a z-score? An observation has a z-score of…

A: We have to give formula and interpretation of z score.

Q: The inter quartile range (IQR) of the data: 2, 4, 4, 5, 6, 7, 8 is equal to 2. 3. 6.

A: According to the given information, we haveData set: 2, 4, 4, 5, 6, 7, 8

Q: Go through the steps of ANOVA hypothesis testing to see if you can conclude that there is a…

A: In order to determine whether there is significant difference in between the mean concentration of…

Q: A measure of total variation in the observed values of the response variable is the ______. The…

A: Coefficient of determination: The coefficient of determination (R) is the percentage of the total…

Q: What type of data would you use for collecting data on lap swim time

A: Continuous Data represents measurements and therefore their values can’t be counted but they can be…

Q: Question 2: Identify the TEST for the below scenario and explain why you will choose the test for…

A: Mann-Whitney U-test: Mann-Whitney U test is a non-parametric test, which is used to compare the two…

Q: When solving a problem related to one sample and the confidence interval of variance. Suppose the…

A:

Q: What statistical tool should I use for this problem?  A graduating nursing student conducted a…

A: Test of proportion It is used to test which group have more contribution then the other. Suppose…

Q: 2) Researchers are interested in whether there is any relationship between a person's IQ (x-…

A: A) Given data is appropriate for paired t-test because it is a small sample test. The most…

Q: In Advanced Statistical Inference: What is the relationship between the sufficiency, ancillary, and…

A: The relationship between the sufficiency, ancillary, and completeness is provided below: Let V and T…

Q: . NCAE shows that the average score of the students is 80 and sd is 15.  What is

A: From the given information, μ=80σ=15

Q: Say we have a dataset consisting of 20 observations. From the observations and their corresponding…

A: Here, There are 20 observations given, and the correlation coefficient is equal to 0.89. The…

Q: A social worker notes that in a population of psychiatric inpatients the ethnic mix seems out of…

A: The social worker noted that in the population of psychiatric inpatients the ethnic mix seems out of…

Q: How do you find the mean and variance of part(d)?I need the detailed solution.

A:

Q: - What percentage of guesses fell between z-scores of -1.0 to +2.0?

A: