there is a 9 in the millions place so it would be 9,000,000 or millions place
other 9 is in hundred thousands place so it would be 900,000 or hundred thousands
Answer:
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-interval is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 20 - 1 = 19
80% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 19 degrees of freedom(y-axis) and a confidence level of . So we have T = 1.328
The margin of error is:
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 70 - 1.484 = 68.516 wpm.
The lower bound of the 80% confidence interval of the average typing speed of a student of this college is of 68.516 words per minute.
Answer:
~381 rooms
Step-by-step explanation:
9.45% of the rooms is 36
36/9.45= 3 17⁄21
3 17⁄21*100= 380 20⁄21
round to 381
Answer:
The graph is here, in the photo.
Step-by-step explanation: