Arecent national survey found that high school students watched an average (mean) of 7.2 movies per month with a population standard deviation of 1.0. the distribution of number of movies watched per month follows the normal distribution. a random sample of 49 college students revealed that the mean number of movies watched last month was 6.5. at the 0.05 significance level, can we conclude that college students watch fewer movies a month than high school students?
1. state the null hypothesis and the alternate hypothesis. a. h0: μ ≥ 7.2; h1: μ < 7.2
b. h0: μ = 7.2; h1: μ ≠ 7.2
c. h0: μ > 7.2; h1: μ = 7.2
d. h0: μ ≤ 7.2; h1: μ > 7.2
2. state the decision rule.
a. reject h1 if z < –1.645
b. reject h0 if z > –1.645
c. reject h1 if z > –1.645
d. reject h0 if z < –1.645
3. compute the value of the test statistic. (negative amount should be indicated by a minus sign. round your answer to 2 decimal places.)
value of the test
4. what is the p-value? (round your answer to 4 decimal places.)

ratio is 2 : 9

the answer is three

13.5 : 3

simplifying

5(x + -6) = 2(x + 3)

reorder the terms:

5(-6 + x) = 2(x + 3)

(-6 * 5 + x * 5) = 2(x + 3)

(-30 + 5x) = 2(x + 3)

reorder the terms:

-30 + 5x = 2(3 + x)

-30 + 5x = (3 * 2 + x * 2)

-30 + 5x = (6 + 2x)

solving

-30 + 5x = 6 + 2x

solving for variable 'x'.

move all terms containing x to the left, all other terms to the right.

add '-2x' to each side of the equation.

-30 + 5x + -2x = 6 + 2x + -2x

combine like terms: 5x + -2x = 3x

-30 + 3x = 6 + 2x + -2x

combine like terms: 2x + -2x = 0

-30 + 3x = 6 + 0

-30 + 3x = 6

add '30' to each side of the equation.

-30 + 30 + 3x = 6 + 30

combine like terms: -30 + 30 = 0

0 + 3x = 6 + 30

3x = 6 + 30

combine like terms: 6 + 30 = 36

3x = 36

divide each side by '3'.

x = 12

simplifying

x = 12

this should .

45.36 feet per second

step-by-step explanation:

tyrone travels 30 miles in 58.2 minutes.  

1 mile = 5280 feet; this means he travels

30(5280) = 158400 feet in 58.2 minutes.

1 minute = 60 seconds; this means he travels 158400 feet in

58.2(60) = 3492 seconds.

this gives us the unit rate of

158400/3492 = 45.36 feet per second.