Identify whether the studies described here are based on single samples, paired samples, or independent samples: Cholesterol levels are measured in women before taking Lipitor, a cholesterol reducing medication, and then 3 months after. A nutritional exam is applied to a random sample of individuals. Results are compared to expected means and proportions. >

Q: What statistical analysis correctly analyzes the independent measure ( also known as in between…

A: Here we can say that for independent measures we use t-test for one sample and t-test for two…

Q: What does Statistical Significance implies?

A: Practical significance: The practical significance states that even if the treatment tested is…

Q: Why do we use replicates in statisical analyses

A: Replicates: It is defined as the act of collecting and analysing the multiple samples that are…

Q: What research decision influences the magnitude of risk of a Type 1 error?

A: The type I error is the error which results in rejecting the null hypothesis when it is true.

Q: When is the age-standardised death rate more appropriate for comparing populations and when is crude…

A: Calculating crude death rate is more appropriate when we are considering the population of interest…

Q: write an analysis for the data above and what does the p value mean?

A: From the given information we find the solution.

Q: Which type of research would you be conducting on this research question? Select one.

A: Given: Among the types of nursing homes that have existed in my town over the past five years, which…

Q: Where are the deer? Random samples of square-kilometer plots were taken in different ecological…

A: It is given that the number of deer per square kilometer in 3 different locations.

Q: What is the best statistical method to use when measuring two nominal level variables? Why?

A: Nominal scales are used, without any quantitative significance, to label variables. One might…

Q: Mention some of the factors that affect choosing a sample over a population when conducting a…

A: It is an important part of statistics. It is widely used.

Q: Use the following visualization to answer questions 5 - 6. We are going to focus on 3 explanatory…

A: The explanatory variables and their possible values for predicting the response variable, which is…

Q: Determine your independent and dependent variables, choose the appropriate statistical test, and…

A: Independent variable: Levels of nitrogen (categorical variable with 3 levels) Dependent variable:…

Q: Periodically, the county Water Department tests the drinking water at its water distribution center.…

A: The given data set is: 12 27 14 22 28 15 21 17 15 20

Q: A tire manufacturer has been producing tires with an average life expectancy of 27,000 miles. Now…

A: Given: n = 8 μ = 27 thousand α = 0.10 Formula Used: Test-statistic t = X-μsn

Q: 4. Suppose you own a pizza restaurant and have been in prison for three years. You've just been…

A: The reviews received by a restaurant are directly proportional to the quality of service and food in…

Q: Why is it important to include a test of effect size when reporting our statistical test results?

A: Effect size:-   effect size is a quantitative measure of the magnitude of the experimenter…

Q: 5. Compare ANOVA and regression.

A: We have to find difference between ANOVA and Regression...

Q: What is the relationship between error in results and sample size? (explain)

A: Formula to calculate error :  Error = Z*(standard deviation/√n)  n = (Z*standard deviation/Error)2

Q: what was the margin of error for this study?

A: The given confidence interval is,  (34, 66) From the confidence interval, The upper limit is, 66 The…

Q: Where are the deer? Random samples of square-kilometer plots were taken in different ecological…

A: Given Deer counts per square km. Mountain Brush Sagebrush Grassland Pinon Juniper 30 20 5 25…

Q: 6. Complete the table for the repeated measures ANOVA for a study where ten subjects are measured…

A: Here we are given that 10 subjects are measured four times each. That is ,  Number of subjects…