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natta225 [31]
4 years ago
6

A recent national survey found that high school students watched an average (mean) of 7.2 movies per month with a population sta

ndard 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 statistic______________?
4. What is the p-value? (Round your answer to 4 decimal places.) ________________?
Mathematics
1 answer:
guajiro [1.7K]4 years ago
6 0

Answer:

Step-by-step explanation:

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What is the value of x? ​
ra1l [238]

Step-by-step explanation:

Continuation of the answer

4x=180 degrees

X=180/4=45 degrees.

6 0
3 years ago
Given the point A(-2,0)<br> If T&lt;3,2&gt; A = B, then B ia the point
katrin [286]

Answer:

Point B is (1, 2)

Step-by-step explanation:

Let us revise the rule of the translations

  • If the point (x, y) translated horizontally to the right by h units then its image is (x + h, y) ⇒ T (x, y) → (x + h, y)
  • If the point (x, y) translated horizontally to the left by h units then its image is (x - h, y) ⇒ T (x, y) → (x - h, y)
  • If the point (x, y) translated vertically up by k units then its image is (x, y + k)→ (x + h, y) ⇒ T (x, y) → (x, y + k)
  • If the point (x, y) translated vertically down by k units then its image is (x, y - k) ⇒ T (x, y) → (x, y - k)

∵ Point A = (-2, 0)

∵ T (3, 2) → A = B

→ By using the 1st and 3rd rules above, A is translated 3 units right and 2

  units up to get B

∴ T (x, y) → (x + 3, y + 2)

∵ A = (x, y)

∵ x = -2 and y = 0

∴ B = (-2 + 3, 0 + 2)

∴ B = (1, 2)

∴ Point B is (1, 2)

3 0
3 years ago
Find the height of the building shown.
Yakvenalex [24]
The buildings 24 ft tall :)
6 0
3 years ago
52<br> base six <br><br> Write the normal number
saveliy_v [14]

19770609664 is simple power of 52⁶ .

What is exponent and power?

  • A base number raised to an exponent is referred to as a power in mathematics, where base number is the factor that is multiplied by itself and exponent is the number of times the same base number is multiplied.
  • Exponents and powers are two techniques for simplification of extremely big or extremely small numbers.
  • As an illustration, we can write 3 x 3 x 3 x 3 as 34, where 4 is the exponent and 3 is the base, if we need to represent it simply.
  • It is claimed that the entire statement 34 has power.

= 52⁶

= 52 × 52 × 52 × 52  × 52 × 52

=  19770609664

Learn more about Exponent

brainly.com/question/5497425

#SPJ13

4 0
1 year ago
Isaac walks 6/10 of a mile of a mile in 1/5 of an hour. If Isaac’s walking rate remains constant, what is Isaacs walking rate in
mezya [45]

Answer:

3 miles per hour.

Step-by-step explanation:

To get his walking rate in miles per hour, we multiply 1/5 by its reciprocal, 5/1. We also multiply 6/10 by 5/1. This gets us 30/10 of a mile in an hour. We can simplify 30/10 to 3. This means he walks at 3 miles per hour.

3 0
3 years ago
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