(Answered) A stat 200 instructor believes that the average quiz score

Statistics

A STAT 200 instructor believes that the average quiz score is a good predictor of final exam score. A random sample of 10 students produced the following data where x is the average quiz score and y is the final exam score.

x 72 96 55 65 100 50 85 70 74 85

y 72 98 50 70 96 60 83 75 77 87

(a) Find an equation of the least squares regression line. Show all work; writing the correct equation, without supporting work, will receive no credit.

(b) Based on the equation from part (a), what is the predicted final exam score if the average quiz score is 80? Show all work and justify your answer.

View complete question

Statistics and Probability, Statistics

Category:- Statistics and Probability
Reference No.:- M92595062
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

Elle mae industries has a cash balance of 59000 accounts

Elle Mae Industries has a cash balance of $59,000, accounts payable of $195,000; inventory of $235,000; accounts receivable of $295,000; notes payable of $219,000; and accrued wages and taxes of $49,000. How much net wor ...

A light bulb manufacturer guarantees that the mean life of

A light bulb manufacturer guarantees that the mean life of a certain type of light bulb is at least 720 hours. A random sample of 51 light bulbs as a mean of 710.3 hours with a standard deviation of 62 hours. At an α=0.0 ...

Stocks a b and c have expected returns of 12 percent 12

Stocks A, B, and C have expected returns of 12 percent, 12 percent, and 10 percent, respectively, while their standard deviations are 42 percent, 30 percent, and 30 percent, respectively. If you were considering the purc ...

A book company sells 10 000 books a month each book has a

A book company sells 10, 000 books a month, each book has a 1/500 chance of being returned. Us the Poisson approximation to find the probability that the number of books returned in a month will be at most 3.

1 table 1016 contains the value of the house and the amount

1 Table #10.1.6 contains the value of the house and the amount of rental income in a year that the house brings in ("Capital and rental," 2013). Create a scatter plot and find a regression equation between house value an ...

Based on college data scores on a certain test can be seen

Based on college data, scores on a certain test can be seen as normally distributed that can show the mean of 1524 and a standard deviation of 318. What percentage of scores are greater than 1842 and if needed round to t ...

42 of the cars in a dealer lot are red 21 are black and 10

42% of the cars in a dealer lot are red, 21% are black and 10% are white. The remainder are some other unspecified color. Salespersons randomly shows three cars to three different customers. What is the probability the f ...

Describe the scales of measurement of data that should be

Describe the scales of measurement of data that should be summarized by a measure of location such as a sample mean and a sample median? When is the sample median a better measure of location than the sample mean? Why do ...

A company that sells annuities must base the annual payout

A company that sells annuities must base the annual payout on the probability distribution of the 2) length of life of the participants in the plan. Suppose the probability distribution of the lifetimes of the participan ...

Sixty percent of adults have looked at their credit score

Sixty percent of adults have looked at their credit score in the past six months. If you select 31 customers, what is the probability that at least 25 of them have looked at their score in the past six months?

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