Answer:
Option B - There is at least some difference in the average times spent by the two groups in the mall.
Step-by-step explanation:
A null hypothesis is a hypothesis that states that there is no statistical significance between the two variables. Thus, It is usually the hypothesis that a researcher or experimenter will try to disprove or discredit. While an alternative hypothesis is one that states there is a statistically significant relationship between two variables.
Now, applying these definitions to the question, we can see that;
Null Hypothesis is;
H0; There is no difference in the average times spent by the two groups in the mall
While the alternative hypothesis is;
Ha; There is at least some difference in the average times spent by the two groups in the mall
Thus, correct answer is option B
There are 25 students in the class because ten represents 40% and another ten would equal 20 students or 80%. Half of 40% is 20% and half of 10 is 5 and 80%+20%=100% or 20+5=25.
Answer:
x = 8.
Step-by-step explanation:
Using the chords of a circle intersection theorem:
5x = 4 * 10
x = 40 /5
x = 8.
Answer:
<h2>1.76pints of blue paint</h2>
Step-by-step explanation:
The total number of paint used = 8.8pints
If 4/5 of this amount is white paint, then the amount of white pint is expressed as;
= 7.04
This means the amount of white paint used is 7.04pints.
amount of blue paint used = Total amount of paint - amount of white paint
amount of blue white paint used = 8.8 - 7.04
amount of blue paint used = 1.76pints of paint
Answer:
x can be any real number.
Step-by-step explanation:
Expand using the rule:
Hence,
Subtract 5x+24 from both sides:
This means that there are infinite solutions, and x can be any number.