A local company wants to evaluate their quality of service by surveying their customers. Their budget limits the number of surveys to 100. What is their maximum error of the estimated mean quality for a 93% level of confidence and an estimated standard deviation of 7? a. 1.8130 b. 1.1550 c. 1.2824 d. 1.3160

(C) 1.2824

Step-by-step explanation:

Maximum error = t × sd/√n

sd = 7

n = 1

degree of freedom = n - 1 = 100 - 1 = 99

confidence level = 93%

t-value corresponding to 99 degrees of freedom and 93% confidence level is 1.855

Maximum error = 1.855×7/√100 = 12.985/10 = 1.2985

The closest option is (C)

paula, cory, and krista

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: