A dietetics student investigated the relationship between calcium intake and knowledge about calcium (a score out...
A dietetics student investigated the relationship between calcium intake and knowledge about calcium (a score out of 50) in sports science students. The relationship is: (Calcium intake) = 373.7 + 13.4 x (Knowledge score) with r = 0.85. The best interpretation of the squared correlation is:
Homework Answers
Coefficient of determination means squared correlation=R2
R2 value indicates that the amount of observed variation in dependant variable is explained by the given regression model.
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A dietetics student investigated the relationship between
calcium intake and knowledge about calcium (a score out...
A dietetics student investigated the relationship between calcium intake and knowledge about calcium (a score out...
A dietetics student investigated the relationship between calcium intake and knowledge about calcium (a score out of 50) in sports science students. The relationship is: (Calcium intake) = 371.8 + 14.0 x (Knowledge score) with r = 0.80. The best interpretation of the intercept is:
What is the relationship between the amount of time statistics students study per week and their...
What is the relationship between the amount of time statistics students study per week and their test scores? The results of the survey are shown below. Time 16 14 15 6 14 15 6 Score 100 89 100 68 99 100 78 x-values y-values Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are: H0:H0: ? ρ r μ == 0 H1:H1: ? μ r ρ ≠≠ 0 The p-value is: (Round to four decimal...
What is the relationship between the amount of time statistics students study per week and their...
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time 12 0 3 14 14 9 0 13 10 Score 95 60 73 85 86 89 65 97 93 Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are: H0:H0: ? μ ρ r == 0 H1:H1: ? ρ μ r ≠≠ 0 The p-value is: (Round...
What is the relationship between the amount of time statistics students study per week and their...
What is the relationship between the amount of time statistics students study per week and their test scores? The results of the survey are shown below. Time 13 10 9 9 2 10 12 8 Score 84 83 90 76 74 86 99 85 x-values y-values Find the correlation coefficient: r=r= Round to 2 decimal places. The null and alternative hypotheses for correlation are: H0:H0: ? r ρ μ == 0 H1:H1: ? μ ρ r ≠≠ 0 The p-value is: (Round to...
Research Scenario A: A bored statistics student wants to determine if there is a relationship between...
Research Scenario A: A bored statistics student wants to determine if there is a relationship between the number of cigarettes smoked (X) and the number of beers drank (Y) over the duration of a televised Buffalo Bills game. Here are the data: QUESTION 15 Continuing with Research Scenario A (from #13), in determining if there is a relationship between cigarette smoking and beer consumption, what is the obtained Person's product moment correlation coefficient (r)? Please round your final answer to...
What is the relationship between the amount of time statistics students study per week and their...
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time Score 3 67 13 95 6 15 77 89 13 100 3 66 7 63 11 79 1 59 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? D = 0 H: ? *0 The p-value is: (Round...
4,5 and 6 please 4) Analysis of data from a statistical study showsa lincar relationship in...
4,5 and 6 please
4) Analysis of data from a statistical study showsa lincar relationship in the data with a correlation coeflicient of -0.524. Which statement best summarines this resul There is a strong positive corelation between the variables There is a strong negative correlation between he variables There is a moderate positive cornelation beween the variables. There is a moderate negative corelation between the variables 4 5) The scatter plot below represents the relationship between the number of peanuts...
please correct red error boxes What is the relationship between the amount of time statistics students...
please correct red error boxes
What is the relationship between the amount of time statistics students study per week and their final exam scores! The results of the survey are shown below The ruil and alternative hypotheses for correlation are The preluet: 1.0024 Round to four decimal places c. Use a level of sigrice -0.05 to state the conclusion of the hypothesis test in the context of There la statistically significant evidence la conclude that there a carrodation between the...
Students in a meat science class examined the relationship between the price of ground beef in 5 per pound) and fat con...
Students in a meat science class examined the relationship between the price of ground beef in 5 per pound) and fat content (in grams) for a random sample of meats gathered from a local grocery store. The data are plotted in the scatterplot below. Scatterplot of Price/lb vs Fat Grams 10 Fal Grams Which of the following is the best estimate of the correlation, based only on the scatterplot? Hint: No calculation is required. Use what you know about correlation....
The student government association wanted to demonstrate the relationship between the # of beers (“beers”) a...
The student government association wanted to demonstrate the relationship between the # of beers (“beers”) a student drinks and their blood alcohol content (“BAC”). A random sample of students participated in a study, and the data below was obtained. Use alpha = .05 for statistical tests. Given the following two regression output tables, answer the questions: ANOVA df SS MS F Significance F Regression 1 0.002811 0.002811 10.11611 0.015478078 Residual 7 0.001945 0.000278 Total 8 0.004756 Coefficients Standard Error t...
Research Scenario A: A bored statistics student wants to determine if there is a relationship between the number of cigarettes smoked (X) and the number of beers drank (Y) over the duration of a televised Buffalo Bills game. Here are the data: QUESTION 15 Continuing with Research Scenario A (from #13), in determining if there is a relationship between cigarette smoking and beer consumption, what is the obtained Person's product moment correlation coefficient (r)? Please round your final answer to...
What is the relationship between the amount of time statistics students study per week and their final exam scores? The results of the survey are shown below. Time Score 3 67 13 95 6 15 77 89 13 100 3 66 7 63 11 79 1 59 a. Find the correlation coefficient: r = Round to 2 decimal places. b. The null and alternative hypotheses for correlation are: Ho: ? D = 0 H: ? *0 The p-value is: (Round...
4,5 and 6 please
4) Analysis of data from a statistical study showsa lincar relationship in the data with a correlation coeflicient of -0.524. Which statement best summarines this resul There is a strong positive corelation between the variables There is a strong negative correlation between he variables There is a moderate positive cornelation beween the variables. There is a moderate negative corelation between the variables 4 5) The scatter plot below represents the relationship between the number of peanuts...
please correct red error boxes
What is the relationship between the amount of time statistics students study per week and their final exam scores! The results of the survey are shown below The ruil and alternative hypotheses for correlation are The preluet: 1.0024 Round to four decimal places c. Use a level of sigrice -0.05 to state the conclusion of the hypothesis test in the context of There la statistically significant evidence la conclude that there a carrodation between the...
Students in a meat science class examined the relationship between the price of ground beef in 5 per pound) and fat content (in grams) for a random sample of meats gathered from a local grocery store. The data are plotted in the scatterplot below. Scatterplot of Price/lb vs Fat Grams 10 Fal Grams Which of the following is the best estimate of the correlation, based only on the scatterplot? Hint: No calculation is required. Use what you know about correlation....
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