Answer:
x=1/2
Step-by-step explanation:
D)One solution. b=5
Distribute 2 times b plus 2 times 3
2b+6
2b+6+2b=26
Combine like terms 4b+6=26
Subtract 6 from both sides
4b=20
Divide both sides by 4
b=5
Check by substituting 5 for b
2 (5+3)+2(5)=26
2(8) + 2(5)=26
16+10=26
26=26
Answer:
(iii) The conclusion of a right tail hypothesis test (test of significance) for a population mean at the significance level should always match the conclusion of a two-sided confidence interval for estimating the same population mean at the confidence level 1- (iv) Keeping all other quantities fixed, increasing the significance level will increase the power of the test.
Explanation:
Improving your process decreases the standard deviation and, thus, increases power. Use a higher significance level (also called alpha or α). Using a higher significance level increases the probability that you reject the null hypothesis. ... (Rejecting a null hypothesis that is true is called type I error.)
Increase the power of a hypothesis test
1. Use a larger sample. ...
2. Improve your process. ...
3. Use a higher significance level (also called alpha or α). ...
4. Choose a larger value for Differences. ...
5. Use a directional hypothesis (also cathe called a one-tailed hypothesis).
for P(t) = 65- 5t
domain is [0, 13]
because intially at t = 0 total puppy available is 65 (put t = 0 in equation)
now after 13 days
P(t) = 65 - 5×13 = 65-65 = 0
no puppy available. so t has last range of 13.
similarly for second its domain is [0, ∞]
as subscribers will increase as t will increase.
for 3rd
C(t) = 65 + 5t
here t is guest so . they can only accomdate 30 guests only so t csn go to 30 only.
so domain is [0,30]
