Fill in the blanks based on the patterns in the data. a. For restaurants, the correlation between
Question:
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).
Step by Step Answer:
Introduction To Statistical Investigations
ISBN: 9781119683452
2nd Edition
Authors: Beth L.Chance, George W.Cobb, Allan J.Rossman Nathan Tintle, Todd Swanson Soma Roy