Fill in the blanks based on the patterns in the data. 

a. For restaurants, the correlation between average noise level and time becomes ________ (stronger/weaker) if you exclude the two lunch-time measurements. 

b. For stores, the noise level _______ (is/is not) related to time of day. 

c. For the all other locations (plot D), the suggestion of a possible relationship between noise level and time of day becomes ________ (stronger/weaker) if you exclude the gym measured at 6:30 p.m. 

d. On average, restaurants are ________ (more/less) noisy than stores. 

e. On average, decibel levels measured later in the day tend to be ________ (higher/lower) than those measured earlier in the day. 

f. Time of day ________ (is/is not) confounded with type of location. 

g. For _______ (restaurants/stores/other locations) the fitted noise level increases by more than 10 decibels during the 3 hours from 7 p.m. to 10 p.m. 

h. If you go by the fitted line for all restaurants, the predicted decibel level at 5 p.m. is closest to ______ (round to the nearest 10 dB).