On a day to day bases, as well with non harmful cleanser
Answer: A data language controls database operations including storing, retrieving, updating and deleting data
Explanation: This is the definition for manipulation
Answer:
The correct option here is E) all of the above.
Explanation:
Job amenities are nothing but the perks or benefits that a employee receives from his or her employer company . There can be various benefits that a employee can receive like health insurance, pension plan , dental insurance, vacation, or sick days , good working conditions etc.
All of the choices given in the question are examples of job amenities that a employee receives
a) ( 0.8509718, 0.8890282)
b) ( 0.7255, 0.7745)
Explanation:
(a)
Given that , a = 0.05, Z(0.025) =1.96 (from standard normal table)
So Margin of error = Z × sqrt(p × (1-p)/n) = 1.96 × sqrt(0.87 × (1-0.87) / 1200)
=0.01902816
So 95 % confidence interval is
p+/-E
0.87+/-0.01902816
( 0.8509718, 0.8890282)
(b)
Margin of error = 1.96 × sqrt (0.75 × (1-0.75) / 1200) = 0.0245
So 95% confidence interval is
p+/-E
0.75+/-0.0245
( 0.7255, 0.7745)
