Question 2. Lawyer Salaries [10 marks] Suppose the column Lawyer Salary in Assignment-1_S24.xlsx data file contains the salaries of articling lawyers in Ottawa firms. (a) Test at the 0.05 level of significance whether there is sufficient evidence to conclude that the average salary of articling lawyers in Ottawa exceeds $75,000. Use the critical value approach. (b) Now calculate the p-value for the result in part (a). (c) Finally calculate a 95% 1-sided confidence interval for the average salary of an articling lawyer in Ottawa. (d) Explain why the p-value and confidence interval do or do not support your conclusion in part (a). (e) Show a boxplot of the data and explain whether the assumptions of the test and confidence interval are reasonable.

Q: How do you construct a residual plot using Statcrunch?

A: Regression analysis is a method of predicting the value for the one variable by the known value of…

Q: Where do p-values concentrate?

A: Under the null hypothesis H0 about the unknown distribution of the test statistic, the p value is…

Q: Statistics students in Oxnard College sampled 11 textbooks in the Condor bookstore and recorded the…

A: In this case Number of Pages (x) is the independent variable and Cost (y) is the dependent variable.…

Q: What is the equation for the regression line that predicts home equity using credit score as the…

A: Solution: Given information:  The dependent variable (y) is   Home Equity  The independent or…

Q: Describe about the correlation coefficient for quantitative data.

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

Q: What is the coefficient of determination and how is it interpreted in correlation and regression…

A: The coefficient of determination, often denoted as R2, is a statistical measure used in correlation…

Q: We use the dataset "MASchools" in the package "AER". The dataset contains information on test…

A: Given the population regression model:

Q: Critical value of rSS =. _. This relationship _ significant. Do the data suggest that increased…

A: The Spearman's rank correlation method is based on the ranks. It is used to deal with qualitative…

Q: Describe about the measurement of variability for qualitative and ranked data?

A:

Q: Identify and discuss the several aspects of univariate analysis.

A: Univariate analysis is the simplest form of analyzing a data.

Q: Manipulating data or analyses to artificially get a significant result is called

A: Given the term... Manipulating data or analyses to artificially get a significant result is called

Q: Sketch a possible smoothed histogram for a data set that has one mode and whose mean is greater than…

A: To plot a histogram that has one mode and its mean is greater than median.

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: What is Meta-analysis?

A: A meta-analysis is a survey in which the results of the studies included in the review are…

Q: What is the best measure of central tendency for 2 nominal level variables and why?

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

Q: Define the term relationship as a perfect positive cross-correlation?

A:

Q: Plot a scatter diagram for the data used in topic (c) and plot the linear regression model as well.…

A: Since you have mentioned the last 2 parts, answering only those questions. If you have any doubts in…

Q: College bound: A national college researcher reported that 68% of students who graduated from high…

A: Givenp=0.68n=32Let "x" be the no. of students enroll in collegex~Binomial(n=32 ,…

Q: 72. Two-sided test The one-sample t statistic from a sample of n = 25 observations for the two-sided…

A: n=25 t=-1.12 d.f=n-1=24 alpha= 0.05 and 0.01