Five step hypothesis test-correlation

Assignment Help Basic Statistics

Reference no: EM13110219

Consumer Reports magazine tested paints. The table below shows the overall quality score and cost in dolllars per gallon. Test for a correlation. Based on these results, do you get better quality paint by paying more?

Quality

90 87 87 86 86 86 82 81 78 62 61 59 23

Cost

27 32 34 30 20 19 19 36 15 39 24 25 15

(i) Test statistic:

(ii) Critical values:

(iii) Conclusion on H0:

(iv) Interpret the results according to the problem.

Reference no: EM13110219

Questions Cloud

Sketch the vertical line at location of z-score : Each of the given z-scores, draw the normal distribution and sketch the vertical line at location of z-score, then find out whether body is to right or the left of line and determine the proportion in the body.

What are the relative fitnesses of zid- and zid+ : The coefficient for selection between Zid+ and Zid- in common garden experiment of an individual being treated with AZT is 0.036, indicating selection for Zid-.

Explain methods to diagnose employee stress : Discuss methods to diagnose employee stress and the specific OD (organizational development practitioner) interventions aimed at alleviating it in the workplace.

Effects of fiscal contraction on real interest rate : The effects of this fiscal contraction on real interest rate, desired saving, desired investment, and the net export balance.

Five step hypothesis test-correlation : Consumer Reports magazine tested paints. The table below shows the overall quality score and cost in dolllars per gallon. Test for a correlation. Based on these results, do you get better quality paint by paying more?

List the three specialized dna sequences : List the three specialized DNA sequences and their functions that allow chromosomes to be maintained during the cell cycle?

Which of the following events accounts for an observed : A population of birds colonizes an area in which the insects upon which they feed live inside trees. Which of the following events accounts for an observed increase in average beak size in the bird population over time?

Find evidence that mean amount is different from gallon : You choose random sample of 50 cans, and mean amount of paint per 1-gallon can is 0.995 gallon. Is there evidence that mean amount is different from 1.0 gallon (use α=0.01).

Hypothesis testing of psychology students : A professor in the psychology department would like to determine whether there has been a significant change in grading practices over the years.

User Account

All Pages