Answer:40% weight increase
Step-by-step explanation:
There is no outliers though 102 and 9 are the furthest numbers from the rest, but not a significant outlier
Answer:
Step-by-step explanation:
15 plus 15 plus 15 is 45 - 15 =30
The two-sided alternative hypothesis is appropriate in this case, the reason being we are asked "does the data indicate that the average body temperature for healthy humans is different from 98.6◦........?".
The test statistic is:

Using an inverse normal table, and halving

for a two-tailed test, we look up

and find the critical value to be Z = 2.5758.
Comparing the test statistic Z = -5.47 with the rejection region Z < -2.5758 and Z > 2.5758. we find the test statistic lies in the rejection region. Therefore the evidence does not indicate that the average body temperature for healthy humans is different from 98.6◦.