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Naily [24]
2 years ago
9

Listed below are the numbers of words spoken in a day by each member of eight different randomly selected couples. Complete part

s​ (a) and​ (b) below.
Male Female

16,051 24,017

26,378 12,962

1440 17,644

7875 17,399

18,237 12,486

15,728 16,581

14,306 16,533

26,823 18,967


a. Use a 0.05 significance level to test the claim that among​ couples, males speak fewer words in a day than females.

In this​ example, mu Subscript d is the mean value of the differences d for the population of all pairs of​ data, where each individual difference d is defined as the words spoken by the male minus words spoken by the female. What are the null and alternative hypotheses for the hypothesis​ test?


The test statistic is -0.35

The P-value is 0.369

What is the conclusion based on the hypothesis​ test?

Mathematics
1 answer:
mafiozo [28]2 years ago
7 0

Answer:

See explanation section

Step-by-step explanation:

See the following images.

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You are driving 2760 miles across the country. During the first 3 days of your trip, you drive 1380 miles. If you continue to dr
prohojiy [21]

The entire trip will take 6 days.

(Encircle this answer, as said on the directions)

Step-by-step explanation:

We know that the first three days of the trip, we traveled 1380 miles.

Find the UNIT RATE of MILES PER day:

1380/3 = 460

Unit rate = 460 miles per day

If we were to drive at this (460 mi per day) rate EACH day and the whole journey takes 2760 miles across the country.

FInd the NUMBER of DAYS of the ENTIRE TRIP:

2760/460 = 6

It will take us 6 days to drive to the destination.

5 0
2 years ago
As a fraction (all of the bellow) <br> 6.7<br> -0.92<br> -0.1<br> -5.05
iren2701 [21]

Answer:

6.7 = 6 \frac{7}{10}

-0.92= -\frac{23}{25}

-0.1= -\frac{1}{10}

-5.05=-5\frac{1}{20}

Step-by-step explanation:

:-)

First rewrite the decimal as a number with 1 in the denominator.

2nd multiply to remove 2 decimal places by (100/100)

3rd reduce the result of the multiplication

Then simplify the improper fraction

-Alex :-)

6 0
2 years ago
Read 2 more answers
Now we are testing to see whether taking a vitamin supplement each day has significant health benefits. There are no (known) har
ZanzabumX [31]

Answer:

Concluding that people should take vitamin supplement each day when they don't help.            

Step-by-step explanation:

We are given the following in the question:

Hypothesis:

Taking a vitamin supplement each day has significant health benefits and does not have any harmful side effects.

Null hypothesis:

Taking a vitamin supplement each day does not have have significant health benefits.

Alternate hypothesis:

Taking a vitamin supplement each day have have significant health benefits.

Type I error:

  • It the error of rejecting the a true null hypothesis.

So error I for this situation would be concluding that people should take vitamin supplement each day when they don't help.

3 0
2 years ago
What is the greatest common factor of 9 21 60?
nordsb [41]
The greatest common factor (GCF) of 9, 21 and 60 is: 3

Factors of 9: 1, 3, 9
Factors of 21: 1, 3, 7
Factors of 60: 1, 2, 3, 4, 5, 6

The common factors between the three numbers are 1 and 3, but since 3 is the highest number, it is considered the GCF.
8 0
3 years ago
5. Solve for each inverse.<br> a. If y = 4x - 10, solve for x.
GREYUIT [131]

Answer:

x = \frac{y+10}{4}

Step-by-step explanation:

Given

y = 4x - 10 ( add 10 to both sides )

y + 10 = 4x ( divide both sides by 4 )

\frac{y+10}{4} = x

5 0
2 years ago
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