Answer:
72 beats per minute
Step-by-step explanation:
So if a female has a pulse rate of 80 beats per minute but her pulse rate is lowe by 10%
First, we need to find what 10% of 80 is
.10 Times 80 = 8
Now we subtract 8 from 80
80-8=72
The female has a heartbeat of 72 beats per minute (bpm)
Answer:
Step-by-step explanation:
We want to determine a 90% confidence interval for the true population mean textbook weight.
Number of sample, n = 22
Mean, u = 64 ounces
Standard deviation, s = 5.1 ounces
For a confidence level of 90%, the corresponding z value is 1.645. This is determined from the normal distribution table.
We will apply the formula
Confidence interval
= mean ± z ×standard deviation/√n
It becomes
64 ± 1.645 × 5.1/√22
= 64 ± 1.645 × 1.087
= 64 ± 1.788
The lower end of the confidence interval is 64 - 1.788 = 62.21 ounces
The upper end of the confidence interval is 64 + 1.788 = 65.79 ounces
Therefore, with 90% confidence interval, the true population mean textbook weight is between 62.21 ounces and 65.79 ounces
Hello,
Please, see the attached file.
Thanks.
Jeans=$89 jean jacket=$(89x2)
$178
$(89x4+178)
89
x4
$ (276 + 178)= $454
total cost = $454
15 rounded to the nearest hundred is 100 or one hundred
