Answer:
1. a. z test for means and t test for means.
2. C. HA : mu1 - mu2 > 0
Step-by-step explanation:
Hypothesis testing is used in a situation where there are more than 1 alternative available. The t test is conducted in the mean which determines the t value and then this value is compared with p value to identify the situation whether to accept or reject the null hypothesis. The alternative hypothesis in this situation is is represented by mu.
Answer:
2
Step-by-step explanation:
lol
I think the answer is y= 4x-2
Answer:
C≈18.85cm
Step-by-step explanation:
C=2πr=2·π·3≈18.84956cm
Answer:
The rate of change of temperature is 1.29 degree Celsius per second.
Step-by-step explanation:
We are given the following information in the question:
The temperature at a point (x, y) is T(x, y), measured in degrees Celsius where x and y are measured in centimeters.


We have to find the rate at which the temperature is rising on the bug's path after 14 seconds.
At t = 14 seconds, we have,

To find rate of change of temperature, we differentiate,

Thus, the rate of change of temperature is 1.29 degree Celsius per second.