You start at 4:04pm and end at 4:18pm. This means 14 minutes have passed
Now you had 275 word typed and now you have 765. To find the amount that were added simply subtract 765 by 275 and you'll get 490.
Finally, to find the average amount of words typed per minute, you'd divide 490 by 14 for each minute which is 35
Your answer is 35 words per minute
Answer:
B) A one-sample t-test for population mean would be used.
Step-by-step explanation:
The complete question is shown in the image below.
The marketing executive is interested in comparing the mean number of sales of this year to that of previous year.
The marketing executive already has the value of mean from previous year and uses a sample to calculate the mean and standard deviation of sales for the current year.
Since, data is being collected for one sample only this limits us to chose between one sample test for mean. So now the possible options are one sample t-test for population mean and one sample t-test for population mean.
If we read the statement we can see that we have the value of sample mean and sample standard deviation. Value of population standard deviation is unknown. In cases where value of population standard deviation is not known and sample standard deviation is given, t-test is used.
Therefore, we can conclude that A one-sample t-test for population mean would be used.
Answer:
A.) 3,380 ft²
B.) 60
C.) $1,410
D.) 15,300 ft³
( I'm pretty sure this is right but someone please check and correct me if it's wrong)