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kaheart [24]
3 years ago
9

Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor

'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave height of μ = 16.4 feet for waves hitting the shore. Suppose that a Nor'easter is in progress at the severe storm class rating. Peak wave heights are usually measured from land (using binoculars) off fixed cement piers. Suppose that a reading of 38 waves showed an average wave height of x= 17.3 feet. Previous studies of severe storms indicate that σ = 3.3 feet. Does this information suggest that the storm is (perhaps temporarily) increasing above the severe rating? Use α = 0.01. Solve the problem using the critical region method of testing (i.e., traditional method). (Round your answers to two decimal places.)test statistic = critical value = State your conclusion in the context of the application.Reject the null hypothesis, there is sufficient evidence that the average storm level is increasing.Reject the null hypothesis, there is insufficient evidence that the average storm level is increasing. Fail to reject the null hypothesis, there is sufficient evidence that the average storm level is increasing.Fail to reject the null hypothesis, there is insufficient evidence that the average storm level is increasing.Compare your conclusion with the conclusion obtained by using the P-value method. Are they the same?
Mathematics
1 answer:
Alenkasestr [34]3 years ago
5 0

Answer:

Step-by-step explanation:

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Me ayudan hacer este ejercicio con los pasos
Dimas [21]

Step-by-step explanation:

a) 2/5 × 5/7 = 10/35 ➡ 2/7 (if needed to simplify)

b) 16/25 × 2/4 = 32/100 ➡ 8/25

c) 15/6 ÷ 3/15 ➡ 15/6 × 15/3 = 25/2

d) 4/11 × 12/9 = 16/33

e) 3/5 × 7/12 = 7/20

f) 9/27 × 2/6 ➡ 9/27 × 6/2 = 3

7 0
3 years ago
F(x)=1+log4^x the 4 is low to the log
SVEN [57.7K]
Well, if you subtract one you get -1=log4^x. base four on each side: 4(to the power of negative 1)=4(to the power of log base four) x. Four to the power of log base 4 cancels, and you're left with 4 to the power of -1=x. the negative exponent recipricates, so x=1/4. you're welcome.
3 0
3 years ago
A yearbook page will show 20 photos displayed in rows.Each row must contain the same number of photos.How many different ways ca
gregori [183]

Answer:

There are five different ways, in which we can arrange the photos.

Step-by-step explanation:

There are five  different ways to arrange the photos.

1. 5 photos in each 4 rows.

2. 4 photos in each 5 rows.

3. 2 photos in each 10 rows.

4. 10 photos in each 2 rows.

5. 20 photos in a single row.

5 0
3 years ago
Please help meeeee :(
Bond [772]
Answer is X > 18

1. Group all constants on the right side of the inequality
X/3 - 2 > 4
Add 2 to both sides: x/3 - 2 + 2 > 4+2
Simplify the arithmetic: X/3 > 4 + 2
Simplify the arithmetic: X/3 > 6
6 0
2 years ago
Would appreciate your help a lot!
ikadub [295]

Answer:

None of those answers are right. It should be

-  \frac{23}{24}

Step-by-step explanation:

You have to find common denominators first. Multiply -5/6 by 4/4 to get -20/24. Multiply 1/8 by 3/3 to get 3/24.

-  \frac{20}{24}  = z +  \frac{3}{24}

Subtract 3/24 from both sides since it is being added.

-  \frac{20}{24}  = z +  \frac{3}{24}  \\  -  \frac{3}{24}  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  -  \frac{3}{24}

Since there are two negatives on the left, add the fractions together and keep the negative sign.

-  \frac{23}{24}  = z

You cannot reduce this fraction.

6 0
2 years ago
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