1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreev551 [17]
3 years ago
9

Can you can help me with 6.7 round the decimal the nearest whole number

Mathematics
2 answers:
Tema [17]3 years ago
7 0
If the number on the right of the number you're trying to round is greater than 5, round it up. If the number on the right of the number you're trying to round is less than 5, round down.
So you're trying to round to the nearest whole number, look on the number on the right, it's bigger than 5, it's a 7. Therefore, round the whole number up so it would be 7.
Kruka [31]3 years ago
7 0

the number to the right of the deciml point, 7 is greater than 4, so the number would be rounded up

 so 6.7 would round to 7.0

You might be interested in
A random sample of soil specimens was obtained, and the amount of organic matter (%) in the soil was determined for each specime
MrRissso [65]

Answer:

We conclude that the true average percentage of organic matter in such soil is something other than 3% at 10% significance level.

We conclude that the true average percentage of organic matter in such soil is 3% at 5% significance level.

Step-by-step explanation:

We are given a random sample of soil specimens was obtained, and the amount of organic matter (%) in the soil was determined for each specimen;

1.10, 5.09, 0.97, 1.59, 4.60, 0.32, 0.55, 1.45, 0.14, 4.47, 1.20, 3.50, 5.02, 4.67, 5.22, 2.69, 3.98, 3.17, 3.03, 2.21, 0.69, 4.47, 3.31, 1.17, 0.76, 1.17, 1.57, 2.62, 1.66, 2.05.

Let \mu = <u><em>true average percentage of organic matter</em></u>

So, Null Hypothesis, H_0 : \mu = 3%      {means that the true average percentage of organic matter in such soil is 3%}

Alternate Hypothesis, H_A : \mu \neq 3%      {means that the true average percentage of organic matter in such soil is something other than 3%}

The test statistics that will be used here is <u>One-sample t-test statistics</u> because we don't know about the population standard deviation;

                         T.S.  =  \frac{\bar X-\mu}{\frac{s}{\sqrt{n} } }  ~ t_n_-_1

where, \bar X = sample mean percentage of organic matter = 2.481%

             s = sample standard deviation = 1.616%

            n = sample of soil specimens = 30

So, <u><em>the test statistics</em></u> =  \frac{2.481-3}{\frac{1.616}{\sqrt{30} } }  ~ t_2_9

                                     =  -1.76

The value of t-test statistics is -1.76.

(a) Now, at 10% level of significance the t table gives a critical value of -1.699 and 1.699 at 29 degrees of freedom for the two-tailed test.

Since the value of our test statistics doesn't lie within the range of critical values of t, so we have <u><em>sufficient evidence to reject our null hypothesis</em></u> as it will fall in the rejection region.

Therefore, we conclude that the true average percentage of organic matter in such soil is something other than 3% at 10% significance level.

(b) Now, at 5% level of significance the t table gives a critical value of -2.045 and 2.045 at 29 degrees of freedom for the two-tailed test.

Since the value of our test statistics lies within the range of critical values of t, so we have <u><em>insufficient evidence to reject our null hypothesis</em></u> as it will not fall in the rejection region.

Therefore, we conclude that the true average percentage of organic matter in such soil is 3% at 5% significance level.

8 0
3 years ago
Greg has an MP3 player called the Jumble. The Jumble randomly selects a song for the user to listen to. Greg's Jumble has 6 clas
kvasek [131]
Total songs= 22
Total songs w/out rap= 13
13/22=0.59

.59 or 59%
3 0
3 years ago
Read 2 more answers
Calculate the length of the circumference of a circle with radius of 7cm
borishaifa [10]
The circumference should be 43.98
7 0
2 years ago
Read 2 more answers
What is 9.6+5.42-3.2 squared​
Aleonysh [2.5K]

Answer:

139.7124

Step-by-step explanation:

9.6+5.42-3.2 (^2)

11.82^2

= 139.7124

7 0
2 years ago
Read 2 more answers
What is the answer to this question
Anon25 [30]

Answer:

2118/12681

Step-by-step explanation:

Number of students absent in high school/Total number of students in high school

2118/12681

4 0
3 years ago
Other questions:
  • Consider the recursive formula an = (2 + an-1) / 2
    7·1 answer
  • Y=6x^2, y=-4.5x^2,y=-x^2 <br> Widest to narrowest
    5·1 answer
  • Question:
    14·1 answer
  • Which of the following pairs is not correctly written in scientific notation? 1,207,000 = 1.207 × 106 6,500 = 6.5 × 102 901 = 9.
    10·2 answers
  • Please help. Links=Report
    12·1 answer
  • Which undefined term is used to define an angel
    9·2 answers
  • Help with the question please​
    8·1 answer
  • 5) Find the missing term in the sequence. What rule did you use?*
    9·1 answer
  • Money is put into two accounts. Account A earns 3.5% interest annually, and account B eanrs 2.6% interest annually. Assuming $20
    14·1 answer
  • 30 POINTS!!<br> 2/5v = 4<br><br> v = 10<br> True or False?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!