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vladimir1956 [14]
2 years ago
13

Express the ratio inits simplest form 1/3:1/2

Mathematics
1 answer:
butalik [34]2 years ago
5 0

Answer:

3:2

Step-by-step explanation:

1/3:1/2

3^{-1}:2^{-1}

Cancel the exponents on both sides.

3:2

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in 1991, a gallup poll reported this percent to be 79%. using the data from this poll, test the claim that the percent of driver
snow_lady [41]

We reject our null hypothesis, H₀, at a level of significance of =0.01 since the P-value is less than that threshold. There is compelling statistical data to indicate that since 1991, the proportion of drivers who love driving has decreased.

Given,

The Pew Research Center recently polled n=1048 U.S. drivers and found that 69% enjoyed driving their automobiles.

In 1991, a Gallup poll reported this percentage to be 79%. using the data from this poll, test the claim that the percentage of drivers who enjoy driving their cars has declined since 1991.

To report the large-sample z statistic and its p-value,

Null hypothesis,

H₀ : p = 0.79

Alternative hypothesis,

Ha : p < 0.79

Level of significance, α = 0.01

Under H₀

Test statistic,

Z_0= \frac{\hat p - p}{\sqrt{\frac{p(1-p)}{n} }  }

Z₀ = -7.948

The alternative hypothesis(Ha) is left-tailed, so the P-value of the test is given by

P-value = P(z <-7.945)

            = 0.000     (from z-table)

Since the P-value is smaller than given level of significance, α=0.01 we reject our null hypothesis, H₀, at α=0.0.1 level Strong statistical evidence to conclude that the percentage of drivers who enjoy driving their cars has declined since 1991.

To learn more about hypothesis click here:

brainly.com/question/17173491

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5 0
1 year ago
Music lessons cost$20 pretty week how much do 6 weeks cost
joja [24]
6 weeks × 20 dollars = $120
4 0
3 years ago
Reading 44 Sports 55 Video games 55 Music 66. How to find the percent Plz help?????
zepelin [54]
Reading          - 44
Sports             - 55
Video games - 55
Music              - 66
--------------------------
                    =  220

Reading = (44/220) x 100 = 20%
Sports = (55/220) x 100 = 25%
Video games -> same as sports
Music = (66/220) x 100 = 30%

20 + 25 + 25 + 30 = 100%

hope this helps :)
plz let me know if this was not your question









5 0
3 years ago
Please Solve<br> 9.2/-0.4=
Elena-2011 [213]

Answer:

-23

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
One week, London earned $313.50 at her job when she worked for 15 hours. If she is paid the same hourly wage, how many hours wou
kicyunya [14]

Answer:

31 hours

Step-by-step explanation:

First you take 313.50 divide that by 15 get 20.9 per hour

Then you take 647.90 and divide that by 20.9

So then you're left with 31 as your answer.

8 0
2 years ago
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