The least square estimators are a. Period estimators b. Point estimators c. Population estimators d. Popular estimators

The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? O A. The variable "weekly time spent watching television" is likely uniform, not normally distributed. O B. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. O C. The variable "weekly time spent watching television" is likely normally distributed. O D. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. O E. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. (b) According to a certain survey, adults spend 2.45 hours per day watching television on a weekday. Assume that the standard deviation for…

Which of these statements is not a condition for an exposure to quality as a risk factor?   There is a dose-response relationship   There is temporality of the exposure and the disease in terms of occurrence   The observed relationship between exposure and the disease in not due to some source of error in the design   The observed relationship between exposure and the disease is due to due to some source of error in the design.

Pls show work so I can understand