Answer:
Step-by-step explanation:
The null hypothesis is the hypothesis that is assumed to be true. It is an expression that is the opposite of what the researcher predicts.
The alternative hypothesis is what the researcher expects or predicts. It is the statement that is believed to be true if the null hypothesis is rejected.
From the given situation,
news article says that high school students are currently spending an average of 15 hours per week doing homework online. This is the null hypothesis.
H0: µ = 15 hours
You don't think this is an accurate estimate, although you're not sure whether the real value is higher or lower. This is the alternative hypothesis.
Ha : µ ≠ 15 hours
Answer:
I know this is late...but for future reference for others
32 x .60 = 19.2
28 x .40 = 11.2
then add both answers
19.2 + 11.2 = 30.4 average age of the members is your final answer
Step-by-step explanation:
Answer:
47°
Step-by-step explanation:
Since x and 133° are supplementary (meaning they add up to 180°), x + 133 = 180 so that means x = 47°.
You would multiply the experimental probability times the number of games to get the expected number of wins.
P(w)=16/27
P(w)=16/27
w=162*16/27
w=2592/27
w=96
So you should expect 96 wins in the 162 game season.
Answer: B
For example, x to the power of 1/2 can be rewritten as the square root of x. Any number to the power of a fraction that has a numerator of one can just be rewritten with a radical, with the number underneath and the denominator of the fraction outside the radical. For the above problem, the 5 (numerator of fraction) can just be written as x to the power of 5, such as inside the radical in choice B. But the 7 must be outside, since x to the power of 1/7 is just X to the root of 7.
