Answer:
Null Hypothesis [H0] : t = 8.3
Alternate Hypothesis [H1] : t < 8.3
Step-by-step explanation:
Hypothesis testing is used to test the statistical significance of a mathematical proposition.
Null Hypothesis is the neutral hypothesis, stating equality to assumed value. Alternate Hypothesis is the contradictory hypothesis, stating deviation from the assumed value.
For hypothesis formation of given case:-
Let average time taken by women with female companion = t
Null Hypothesis [H0] : t = 8.3
Alternate Hypothesis [H1] : t < 8.3
Answer:
x = 0, x = 1
Step-by-step explanation:
Given
x² = x ( subtract x from both sides )
x² - x = 0 ← factor out x from each term on the left side
x(x - 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x = 0
x - 1 = 0 ⇒ x = 1
Answer:
205 minutes
Step-by-step explanation:
Step one:
given data
We are told that Luca's goal is to practice violin for 300 minutes in a week
He has practiced 45 minutes and 50 minutes for Saturday and Sunday already
that is in all, 45+50= 95minutes
Required
The remaining minutes of practice
Step two:
the deficit in practice is
300-95= 205 minutes
Answer:
2.85
Step-by-step explanation:
2x+20=25.7
2x+20-20=25.7-20
2x=5.7
2x/2=5.7/2
x=2.85