We are interested in studying the linear relationship between someone's age and how much they spend on travel. The following data is provided: Amount Spent on Travel Age 39 43 50 59 25 38 O a. (345.67, 872.54) b. (31.34, 1194.94) OC. (450.88, 698.93) Od. (202.54, 1017.74) 850 997 993 649 1265 680 Assuming someone is 65 years old, what is the 90% confidence interval for the expected amount they would spend on travel?

Calculate the value  A. 0.3 B. 0.4 C. 0.5 D. 0.6 E. 0.7

Is this right?

Researchers wondered whether the size of a person's brain was related to the individual's mental capacity. They selected a sample of 5 females and 5 males and measured their MRI image pixel counts and IQ scores. Females Males MRI IQ MRI IG The data is reported to the right. Complete parts (a) through (d) below 139 858,472 140 955,003 935,494 924,059 1.079.550 1,001.121 Click the icon to view the critical values table. 991,305 138 141 857,782 833,868 790,619 133 135 132 141 135 140 AMRI 1,080,000- AIO 145 AIO 145- AMRI 1,080,000 780,000 130 130 780,000 130 780,000 780,000 130 1,080,000 145 1,080,000 MRI 145 MRI (b) Compute the linear correlation coefficient between MRI count and IQ. Are MRI count and IQ linearly related? Select the correct choice below and, if necessary, fill in the answer box to complete your choice. (Round to three decimal places as needed.) A. Yes, MRI count and IQ are linearly related since the linear correlation coefficient is O B. No. MRI count and IQ are not…

Calculate (x-bar) for the data shown, to two decimal places 19.7 10.4 11.8 26.1 27.3 29

Please help with parts c, d, and e. Thank you!

Fahrenheit is the measurement of temperature commonly used in the US. On the Fahrenheit scale, water freezes at 32 F and boils at 212 F (at sea level). What is the data type and measurement scale of a dataset that records Fahrenheit temperature?   a.  Numerical and ratio b. Numerical and interva c. Categorical and ratio d. Categorical and ordinal