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Here is a FDT for a small data set:
| data | freq |
|---|---|
| 14 | 1 |
| 15 | 3 |
| 16 | 3 |
| 17 | 4 |
| 18 | 9 |
Find the following measures of
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- Consider the following box and whisker plot. Find the indicated values of the represented data. 16 38 64 78 90 18 28 30 48 50 60 78 80 98 100 Third quartile Maximum.For the following pairs of variables, indicate whether you would expect a positive correlation, a negative correlation, or close to 0 correlation. Maximum daily temperature and cooling costs Interest rates and number of loans Incomes of husbands and wives in dual career families Height and IQ Height and shoe size Score on the Math SAT and Verbal SAT scores Time spent on video games and college GPA Use of fertilizer and yield of cropsIf the Correlation Coefficient (r) between two variable was calculated to be 0.7898, what percent (%) of the variation of the dependent variable is due to the variation of the independent variable? Group of answer choices 103.1% 33.1% 62.4% 94.0%
- Approximate the measures of center for following GFDT. Data Frequency 50 - 54 2 55 - 59 3 60 - 64 5 65 - 69 10 70 - 74 18 75 - 79 15 80 - 84 9 85 - 89 0 90 - 94 5 mode = median = mean =The correlation coefficient (r) measures O how many data points are shown on a scatterplot. O whether or not a scatterplot shows an interesting pattern. O whether a cause and effect relationship exists between two variables. O the strength and direction of the linear relationship between two quantitative variables.Consider the following ordered data. 2 5 5 6 7 7 8 9 10 (a) Find the low, Q1, median, Q3, and high. low Q1 median Q3 high (b) Find the interquartile range.(c) Make a box-and-whisker plot.
- The data below was collected from manufacturer advertisements of their vehicles horsepower and highway gas mileage (mpg.). Use this data to answer the following questions. 158 250 340 350 390 190 220 y 33 28 15 17 11 35 42 1. Find the p-value to determine if there is a linear correlation between horsepower and highway gas mileage (mpg). Record the p-value below. Round to four decimal places. p-value = 2. Is there a linear correlation between horsepower and highway gas mileage (mpg)? 3. If there is a linear correation, write the correlation coefficient below. Otherwise, leave it blank. Round your final answer to four decimal places. 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 the the highway gas mileage (mpg) for a car that has a horsepower of 225. Round your final answer to two decimal places. 6. If there is a linear correlation, what percentage of…A group of Economics students wish to know whether a student's spending is related to his/her parents' monthly income. Which measure must be used? Group of answer choices A. regression analysis B. correlation analysis C. descriptive statistics D. partial correlation analysisAnswer the following table
- Kim, a personal trainer, was interested in whether or not there was a linear relationship between the number of visits her clients made to the gym each week and the average amount of time her clients exercised per visit. She took the following data. Client 1 2 3 4 5 6 Number of visits per week 1 3 4 2 3 5 Average time spent exercising per visit (hours) 2 1.5 1 2 2 0.30 Find the correlation coefficient using Excel. Round to 2 decimal places. calculate the P value with significance level 0.05. Round to 3 decimal places. Is it significant?The table lists weights (pounds) and highway mileage amounts (mpg) for seven automobiles. Use the sample data to construct a scatterplot Use the first variable for the x-axis. Based on the scatterplot, what do you conclude about a linear correlation? 2425 Weight (Ib) Highway (mpg) 2725 2875 3480 4070 4090 3125 34 33 30 25 24 36 31 Which scatterplot below shows the data? O A. OB. C. O D. 40- 40- 40 20+ 2000 20- 2000 Weight (Ib) 20어 2000 20- 2000 Weight (Ib) 5000 5000 5000 5000 Weight (Ib) Weight (Ib) Is there a linear relationship between weight and highway mileage? O A. No, there appears to be no relationship. O B. Yes, as the weight increases the highway mileage increases. O C. No, there appears to be a relationship, but it is not linear. Click to select your answer. 4:21 PM a 17 梦 * v 6/4/2021 W 0 門 e Type here to search Chp ins prt sc delet fg ho ト f8 144 f6 10 f5 f4 IOI esc back & #3 $4 4 T. 6, 00 %24 (6 d) AamH 3. (B dw) AmDetermine the relationship between job performance rating (y) and scores on four tests. The data are as follows: y x1 x2 x3 x4 11.2 56.5 71.0 38.5 43.0 14.5 59.5 72.5 38.2 44.8 17.2 69.2 76.0 42.5 49.0 17.8 74.5 79.5 43.4 56.3 19.3 81.2 84.0 47.5 60.2 24.5 88.0 86.2 47.4 62.0 80.5 44.5 58.1 21.2 78.2 16.9 69.0 72.0 41.8 48.1 14.8 58.1 68.0 42.1 46.0 20.0 80.5 85.0 48.1 60.3 13.2 58.3 71.0 37.5 47.1 22.5 84.0 87.2 51.0 65.2 Estimate b0 in the multiple regression model. Use 2 decimal places. y = b0 + b1 x1 + b2 x2 + b3 x3 + b4 x4.
