Cotinine is a chemical your body makes after you are exposed to nicotine. The cotinine level was measured in women at the beginning and end of their pregnancies. This change was presented on a log scale. Which would be the best test to use to see if there had been a change in cotinine level during pregnancy? a. paired samples t-test b. chi-square test c. pearson correlation d. wilcoxon ranked test

Cotinine is a chemical your body makes after you are exposed to nicotine. The cotinine level was measured in women at the beginning and end of their pregnancies. This change was presented on a log scale. Which would be the best test to use to see if there had been a change in cotinine level during pregnancy? a. paired samples t-test b. chi-square test c. pearson correlation d. wilcoxon ranked test

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

question attached
Please answer the given problem in statistics as soon as possible. Thank you!
Use alpha = .05. Travel Experience and Knowledge of Geography: Suppose you are interested in the relationship between travel experiences and knowledge of geography. You give 10 subjects a 15-item quiz on North American geography and ask each how many states and Canadian provinces they have visited. Subject Travel Score Knowledge Score 1 4 10 2 6. 15 3 7 8. 4 9 8. 7 12 10 7 14 15 8 15 13 15 15 10 17 14 Is there a relationship between travel experience and knowledge of geography? Be sure to state hypotheses, calculate the statistic by hand showing all of your work and provide all other related information and write your conclusion in APA format. Attach SPSS output with relevant portions highlighted and relevant comments marked on the output.
in photo
It is believed that standardized test scores, such as SAT, is a good predictor of first-year college students' GPA. 750 1200 3.2 1120 1000 1420 1280 1100 2.5 2.7 3.5 2.9 2.2 2.3 1. Find the p-value to determine if there is a linear correlation between SAT scores and GPA. Record the p- value below. Round to four decimal places. p-value = 2. Is there a linear correlation between SAT scores and GPA? 3. If there is a linear correation, write the correlation coefficient below. Otherwise, leave it blank. Round your final answer to four decimal places. T= 4. If there is a linear correlation, write the regression equation below. Otherwise, leave it blank. Round all numbers to four decimal places. 5. Using the data shown above, predict a student's first-year GPA when the student scores a 1275 on the SAT. Round your final answer to two decimal places. 6. If there is a linear correlation, what percentage of variation in GPAS can be explained by students' SAT scores? If there is not a linear…
Statistics Question
The accompanying table shows the ages (in years) of 11 children and the numbers of words in their vocabulary. Complete parts (a) through (d) below. Click here to view the data table. Click here to view the table of critical values for the Pearson correlation coefficient. ... Interpret the correlation. Choose the correct answer below. O A. Aging causes the number of words in children's vocabulary to increase. B. Based on the correlation, there does not appear to be any relationship between children's ages and the number of words in their vocabulary. O C. Based on the correlation, there does not appear to be a linear relationship between children's ages and the n O D. Aging causes the number of words in children's vocabulary to decrease. CE. As age increases, the number of words in children's vocabulary tends to increase. there is a significant linear correlation O F. As age increases, the number of words in children's vocabulary tends to decrease. there is no correlation (d) Use the…
The data in the table to the right are based on the results of a survey comparing the commute time of adults to their score on a well-being test. Complete parts (a) through (d) below. LOADING... Click the icon to view the table of critical values of the correlation coefficient. a) Which variable is likely the explanatory variable and which is the response variable? Critical Values for Correlation Coefficient n 3 0.997 4 0.950 5 0.878 6 0.811 7 0.754 8 0.707 9 0.666 10 0.632 11 0.602 12 0.576 13 0.553 14 0.532 15 0.514 16 0.497 17 0.482 18 0.468 19 0.456 20 0.444 21 0.433 22 0.423 23 0.413 24 0.404 25 0.396 26 0.388 27 0.381 28 0.374 29 0.367 30 0.361 n (a) Which variable is likely the explanatory variable and which is the response variable? The explanatory variable is…
The Spearman correlation is like the Pearson correlation except that it uses _____ instead of _____. a. Interval data ; ordinal data b. df ; n c. Ranked scores ; raw scores d. Mean scores ; independent scores
How much would you expect systolic blood pressure to change if a person commits to reducing their cigarette consumption by 1 cigarette per day?
Write a research question that can be explained with a correlation a. Do you have an IV?b. Do you have a DV?
The president of a school club would like to purchase T-shirts for members of the club and asks members which size they would like to order. The results are shown in the histogram below. T-Shirt Sizes 24 22 20 18 16 14 Small Medium Large Extra Large Size Which of the following is a true statement regarding the information shown in the histogram? O T-shirt size is a discrete quantitative variable. O T-shirt size is a continuous quantitative variable. O Frequency of each size is a discrete quantitative variable. O T-shirt size is a categorical variable. kouanbes