Use the Stata output below to answer the following question. The data used in this analysis is from a sample of airlines. The variables used are: fare-avg price of a one-way fare, in dollars dist-distance of the flight, in miles reg 1fare ldist Source Model Residual Total lfare ldist _cons SS 551.391705 875.094374 df The OLS results suggest that MS 1 323.702668 4,594.120024315 4,595 190444913 Number of obs = F(1, 4594) Prob > F R-squared Adj R-squared Root MSE Coef. Std. Err. .4025646 .0077517 51.93 0.000 2.399834 .0521601 46.01 0.000 4,596 2696.98 0.0000 0.3699 0.3698 .34645 t P>|t| [95% Conf. Intervall .4177617 2.502093 .3873676 2.297575 O a 1% increase in distance is associated with approximately a $.40 increase in the price of the fare. a 1% increase in distance is associated with approximately a 40% increase in the price of the fare. O a 1% increase in distance is associated with approximately a 40 % increase in the price of the fare. O None of the above.

Researchers Holdgate et al. (2016) studied walking behavior of elephants in North American zoos to see if there is a difference in average distance traveled by African and Asian elephants. They put GPS loggers on 33 African elephants and 23 Asian elephants and measured the distance (in kilometers) the elephants walked per day. The data in the file below Elephants contains results that are consistent with what the researchers found: Species Distance: African 6.12 African 3.65 African 4.26 African 3.8 African 5.23 African 5.02 African 5.17 African 5.37 African 4.89 African 6.4 African 6.42 African 6.85 African 3.38 African 7.71 African 4.02 African 3.52 African 5.81 African 5.83 African 7.02 African 6.11 African 4.62 African 5.54 African 3.2 African 5.49 African 5.47 African 6.97 African 3.74 African 3.04 African 7.84 African 8.62 African 7.63 African 5.25 African 4.19 Asian 1.39 Asian 2.59 Asian 8.03 Asian 7.93 Asian 0.33 Asian 8.22 Asian 6.95 Asian 2.39 Asian 3.89 Asian 10.53 Asian…

FOR EACH FXERCISE . A study was conducted to determine the relationship between a person's monthly income in dollars and the number of meals that person eats away from per month. The data from the sample are shown here. (The information in this exercise will be used for Exercises 14 and 36 in Section 10-4 and Exercise 16 in Section 10-5.) SKETCH SCAITERPLOT home - FIND SUMMARY STATISTICS FIND CORRELATION Income x 500 1200 1500 945 850 400 540 Meals y 8. 12 16 10 3

8.6 Cherry Trees:  Timber yield is approximately equal to the volume of a tree, however, this value is difficult to measure without first cutting the tree down. Instead, other variables, such as height and diameter, may be used to predict a tree's volume and yield. Researchers wanting to understand the relationship between these variables for black cherry trees collected data from 31 such trees in the Allegheny National Forest, Pennsylvania. Height is measured in feet, diameter in inches (at 54 inches above ground), and volume in cubic feet. (Hand, 1994)   Estimate Std. Error t value P(>|t|) (Intercept) -57.99 8.64 -6.71 0.00 height 0.34 0.13 2.61 0.01 diameter 4.71 0.26 17.82 0.00