(Answered) Equation of the least squares regression line

Statistics

A STAT 300 instructor believes that the average quiz score is a good predictor of final exam score. A random sample of 5 students produced the following data where x is the average quiz score and y is the final exam score. Provide justifications and citations for your responses.

X 80 50 60 100 70

Y 145 150 130 180 120

(a) Find an equation of the least squares regression line.

(b) Based on the equation from part (a), what is the predicted final exam score if the average quiz score is 90?

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M91811621
Price:- $10

Verified Expert

Priced at $20 Now at $10, Verified Solution

Have any Question?Write your Review or question?

Related Questions in Statistics and Probability

You need to have accumulated savings of 2 million by the

You need to have accumulated savings of $2 million by the time that you retire in 20 years. You currently have savings of $200,000. How much do you need to save each year to meet your goal if your savings earn a return o ...

5 of females smoke cigarettes what is the probability that

5% of females smoke cigarettes. What is the probability that the proportion of smokers in a sample of 865 females would be greater than 3%

Assignment -a dashboard-type report for the case study you

Assignment - A dashboard-type report for the case study. You may use Excel or Tableau. The data analysis should be improved from Assignment 1 based on the feedback received and further tools and techniques you learnt in ...

A coffee manufacturer is interested in the mean daily

A coffee manufacturer is interested in the mean daily consumption of regular-coffee drinkers and decaffeinated coffee drinkers. The random sample of 50 regular-coffee drinker show a mean of 3.84 cups per day. A sample of ...

Based on land minerals and natural resources labor and

Based on land, minerals and natural resources, labor and entrepreneurial innovation, which country do you feel has the greatest long-term potential China or Russia.

Sharon recently invested in real estate with the intention

Sharon recently invested in real estate with the intention of selling the property one year from today. She has modeled the returns on that investment based on three economic scenarios. She believes that if the economy s ...

Why are scattered plots necessary when investigating the

Why are scattered plots necessary when investigating the relationship between quantitative variables?

Consider a hypothesis testing problem where the null and

Consider a hypothesis testing problem where the null and the alternative hypotheses are defined as H0 μ=5 Vs. H1 :μ≠5 H0:μ=5 Vs. H1:μ≠5 A 95% confidence interval for μ was calculated as (2, 7). A) What would be your conc ...

Suppose metal shafts produced have a standard deviation of

Suppose metal shafts produced have a standard deviation of 2.8 and a mean diameter of 210 inches. If 84 shafts are sampled at random, what is the probability that the mean diameter of the sample shafts would be less than ...

Shekhar plans to invest 1820 in a mutual fund at the end of

Shekhar plans to invest $1,820 in a mutual fund at the end of each of the next six years. If his opportunity cost rate is 8 percent compounded annually, how much will his investment be worth after the last annuity paymen ...

4,153,160 Questions Asked
13,132 Experts
2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Recent Questions

Ask Statistics and Probability Expert