In Mathematics, <em>x</em> and <em>y</em> are examples of variables.
You can use any letter as a variable but, make sure to include a <em>let statement</em> when using variables.
A let statement essentially tells what the variable represents.
Ex: let <u /><em>h </em>= houses sold
Hope this helps!
-Benjamin
Angelica would have painted the bedroom in 20 hours if every hour she painted 1/20. But she doesn't paint 1/20 of a room per hour but rather 30 minutes. That means it will take her 10 hours to paint the whole room.
Hope this helps.
Answer:
Decision rule: Do not reject ; we cannot conclude that the mean differs from zero
Step-by-step explanation:
From the given information:
The null hypothesis and alternative hypothesis is given as:
And the 99% confidence interval for the population mean is: [−3.79, 5.86]
The significance level ∝ = 1 - 0.99 = 0.01
We will notice that the 99% confidence interval for the population mean contains the null hypothesis mean value which is equal to zero.
Thus, we do not reject the null hypothesis at the significance level ∝ = 0.01
∴
Decision rule: Do not reject ; we cannot conclude that the mean differs from zero
a=
The area of a pizza with a diameter of 10 inches is 78.5.