Approximate the following binomial probabilities by the use of normal approximation. Eight percent of customers of a bank keep a minimum balance of 500 in their checking accounts. What is the probability that in a random sample of 100 customers
a. exactly 6 keep the minimum balance of 500?
b. exactly 11 keep the minimum balance of 500?
c. 6 or fewer keep the minimum balance of 500?
d. 5 or more keep the minimum balance of 500?
e. 10 or fewer keep the minimum balance of 500?
f. 11 or fewer keep the minimum balance of 500?
Question 2
In a residual plot against x that does not suggest we should challenge the assumptions of our regression model, we would expect to see a
a. horizontal band of points centered near zero.
b. widening band of points around the x-axis.
c. band of points having a slope consistent with that of the regression equation.
d. parabolic band of points centered at the origin.
Consequences of normal and inadequate iodine in the diet.
Changes in bronchioles during an asthma attack: (A) normal bronchiole and (B) in asthma attack.
Pulmonary function test: spirometry. (a) Normal respiratory volumes, as measured during spirometry.
Common Laboratory Tests and Their Normal Values
Normal Recommended Daily Intakes for Calcium
Normal (A) and Abnormal (B) Balance between Dopamine and Acetylcholine