Answer:
37.5 feet.
Step-by-step explanation:
1.25/actual height = 1/30
1.25*30 = 37.5 ft
(╹ڡ╹ )
Step 1: Add together the known angles.
Step 2: Subtract the sum from 180°.
Answer:
t = -1.862, df = 399, p > 0.05
Step-by-step explanation:
The null hypothesis is the statement which is test for its validity. The decision to accept or reject the null hypothesis is based on the test statistics value. In the given question the null hypothesis is H0 = 34. There is one sample t-test for the testing of null hypothesis. The null hypothesis will be same for each type of one sample t-test. The null hypothesis assumes that the difference between the true mean and comparison value is zero.
Let 
denote the number of packages brought by customer 
. If, for instance, 
customers are in line, then the total number of packages is 
, and
since the number of packages brought by any customer is independent from the number of packages brought by any other.
a. 
is the probability that a total of 3 packages are waiting to get wrapped from among a total of 3 customers. This means each customer must have exactly one package. So
b. 
is the probability that a total of 11 packages are brought by 4 customers. The only way for there to be 11 packages is if 3 customers bring 3 packages and the last 1 brings 2. There are 
ways this can happen, so
