### Finding sample correlation coefficients age with dry weight

Assignment Help Basic Statistics
##### Reference no: EM1314131

Carry out the following operations.

a) Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results.

b) For each straight-line regression, find out r2 directly by squaring r obtained in part (a); also determine r2 from computer output or from formula r2 (SSY - SSE)/SSY. Interpret your results.

c) Based on preceding results. Which of the two regression lines gives the better fit? Describe. Does this agree with your earlier conclusion?

We get the following for Y versus X

Now, for Z versus X we get

It is clear that second regression has much better linear fit. Actually, in the Y-versus-X model, 74.42% of variation is explained, whereas in the Z-versus-X model, 99.83% of variation is described.

#### Questions Cloud

 Determine the lower cost or market for ending inventory : Ending Inventory Calculation for each product & as a whole. Tanzy Company's ending inventory includes the following items. Determine the lower cost or market for ending inventory Determine the predetermined overhead rate : Determine the predetermined overhead rate under the current method, and determine the unit product cost of each product for the current year. Computation of production cost : Computation of production cost with given data and sea Company reports the following information regarding its production cost. Evaluate the value of ending inventory : Determining value of ending inventory using product costing by split off method - Evaluate the value of ending inventory if the sales value at splitoff method is used for product costing. Round to 3 decimal places when necessary. Finding sample correlation coefficients age with dry weight : Find out sample correlation coefficients of (I) age with dry weight, and (2) age with log 10 dry weight. Interpret your results. Solving problems into equation : Solving problems into equation. Decision analysis based on carrying and ordering cost : Decision analysis based on carrying and ordering cost - Which of the ordering costs would Carolina's controller take into account in performing short-run decision analysis? Non parametric test-kruskal wallis test : Describe what you find then produce an ANOVA for the problem. Purpose a post-closing trial balance : Purpose a post-closing trial balance. Also prove the accuracy of subsidiary ledgers by preparing schedules of both accounts receivable and accounts payable.

### Write a Review

#### Confidence interval for the population mean

Take a confidence interval for the difference in the average of renting between the first andthird hotel.

#### Evaluate the t statistic for testing contrast

The ANOVA table is given below,as well as a table of means and standard deviations for the three groups. Evaluate the t statistic for testing contrast

#### Evaluate the average earnings

If is the proportion of the next 100 shoppers that buy a packet of the crackers after tasting a free sample, then the probability that fewer than 30% buy a packet after tasting a free sample is approximately.

#### Total maximization of expected profit

What are the best-case and worst-case outcomes the owner may face on this product if she implements your suggestion?

#### Values of probability based on binomial distribution

Find the probability of exactly 6 Mexican-Americans among 12 jurors.

#### State the values of the coefficient of correlation

State the values of the coefficient of correlation and coefficient of determination correct to three decimal places

#### Hypothesis testing-matched pairs

The standard deviation of the differences d for the paired sample data s d  = ____________

#### Inverse probability based on the normal distribution

What IQ score should one have in order to be eligible for Mensa?

#### Participant observer approach

Which of the following studies used a participant observer approach?

#### What is the probability that the sum of their scores

What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student

#### Evaluate the confidence interval

The 50 members of the placebo group had blood pressure lowered by an average of 15 points with standard deviation 8 points. To analyze this information we will use a, When testing whether or not the increases in spending are different, the test is ..

#### Hotel check-ins for a given period

Given the following data on hotel check-ins for a 6-month period: