Question

In: Math

A researcher is interested in whether the variation in the size of human beings is proportional...

A researcher is interested in whether the variation in the size of human beings is proportional throughout each part of the human. To partly answer this question they looked at the correlation between the foot length (in millimeters) and height (in centimeters) of 30 randomly selected adult males. The data is provided below. Use Excel to calculate the correlation coefficient r between the two data sets. Round your answer to two decimal places.

Foot length (mm)   Height (cm)
244.9   159.2
248.5   164.8
248.1   173.7
252.3   171.7
251.6   164.6
256.5   171.4
240.3   179.7
252.7   183.1
259.7   183.2
263.3   177.9
245.7   181.6
261.0   172.9
256.6   185.2
256.0   169.6
254.7   169.0
248.1   177.6
255.9   181.9
259.4   180.4
277.6   173.0
287.7   175.0
281.2   189.6
269.0   174.1
288.4   176.1
281.8   189.7
289.1   182.7
283.2   186.0
292.5   177.8
285.4   187.7
287.5   190.5
276.8   194.1

R=

Solutions

Expert Solution

milcah answered 1 year ago
Next > < Previous

Related Solutions

Two college instructors are interested in whether or not there is any variation in the way...
Two college instructors are interested in whether or not there is any variation in the way they grade math exams. They each grade the same set of 12 exams. The first instructor's grades have a variance of 52.3. The second instructor's grades have a variance of 89.9. Test the claim that the first instructor's variance is smaller. The level of significance is 5%.
Two college instructors are interested in whether or not there is any variation in the way...
Two college instructors are interested in whether or not there is any variation in the way they grade math exams. They each grade the same set of 12 exams. The first instructor's grades have a variance of 52.3. The second instructor's grades have a variance of 89.9. Test the claim that the first instructor's variance is smaller. The level of significance is 5%.
A researcher is interested in explaining variation in people's incomes. He hypothesizes that income is caused...
A researcher is interested in explaining variation in people's incomes. He hypothesizes that income is caused by number of friends in a person's social network. He conducts a correlation analysis (Pearson's r) between personal income (Y) and number of friends a person has (X). He finds a strong, statistically significant relationship between the two variables. The computation of Pearson's r and hypothesis testing statistics are correct and this decision the decision to reject the null is correct. Bases on these...
Explain circulatory system of human beings
Heart The muscular organ which is located near the chest slightly towards the left in the thoracic region.
A researcher is interested in whether or not there is a difference in student’s performance based...
A researcher is interested in whether or not there is a difference in student’s performance based on the study methods they use. Participants are assigned one of three different study methods (read the text and re-read it, read and answer prepared questions, and read then create your own questions). There are 6 people in each group and the researcher measures the participants’ performance on a test. Perform a hypothesis test and show all four steps. Hints: Use a two tailed...
A health researcher was interested in the variation of patient recovery rates across four different treatment...
A health researcher was interested in the variation of patient recovery rates across four different treatment programs. She compared three different treatment programs (Placebo, Drux X, and Wait List Control) to examine whether the treatment program the patient was in had an influence on the patient's recovery rate. What type of ANOVA is described in the above paragraph? What is the null hypothesis? Her ANOVA had the following results: F(2,28) = 98.12, p = .020). Is the F statistic significant?...
Briefly explain the excretory system of human beings
Excretory System of Humans The excretory system in humans includes a pair of kidneys, a pair of ureters, a urinary bladder and urethra.
A family researcher is interested whether there is an association between the number of siblings a...
A family researcher is interested whether there is an association between the number of siblings a person has and the number of children they have. She interviews six older adults and finds the following information. Number of Siblings Number of Children 0 1 1 1 2 1 2 0 3 3 4 3 Mean Number of Siblings = 2 Mean Number of Children = 1.5 Standard Deviation = 2 Standard Deviation = 1.5 Explain which variable more naturally plays the...
A researcher is interested in determining whether there is a correlation between number of packs of...
A researcher is interested in determining whether there is a correlation between number of packs of cigarettes smoked # packs of cigarettes smoked (X) (Y) 0 80 0 70 1 72 1 70 2 68 2 65 3 69 3 60 4 58 4 55 day and longevity (in years). n=10.
A researcher is interested in determining whether the new design of the training simulator and a...
A researcher is interested in determining whether the new design of the training simulator and a new behavior modification program will affect a student’s learning behavior. Sixty-three (63) students are randomly selected for inclusion in this research project. The students are randomly divided into 9 groups of 7. The group assignments are as follows: Design A Design B Design C No behavior modification 12 18 21 10 16 22 19 27 33 19 23 35 15 26 27 18 22...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT