A sample of 20 students who had recently taken elementary statistics yielded the following information on brand of calculator ow
ned. (T = Texas Instruments, H = Hewlett Packard, C = Casio, S = Sharp): C S T C C S T T S CC T T T H H S S C Ha. Estimate the true proportion of all such students who own a Texas Instruments calculator.
The best estimate for the true proportion of all such students who own a Texas Instruments calculator is 0.3.
Step-by-step explanation:
The estimate of the true proportion of all students who own a Texas Instruments calculator is the number of students who own a Texas Instruments Calculator divided by the total number of students.
6 students own a Texas Instruments Calculator
20 total students
p = 6/20 = 0.3
The best estimate for the true proportion of all such students who own a Texas Instruments calculator is 0.3.