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neonofarm [45]
3 years ago
10

g Make a decision about the given claim. Use only the rare event​ rule, and make subjective estimates to determine whether event

s are likely. For​ example, if the claim is that a coin favors heads and sample results consist of 11 heads in 20​ flips, conclude that there is not sufficient evidence to support the claim that the coin favors heads​ (because it is easy to get 11 heads in 20 flips by chance with a fair​ coin). ​Claim: The mean respiration rate (in breaths per minute )of students in a large statistics class is less than 32. A simple random sample of the students has a mean respiration rate of 31.3.
Mathematics
1 answer:
vagabundo [1.1K]3 years ago
7 0

Answer:

There is not sufficient evidence to support the claim.

Step-by-step explanation:

The claim to be tested is:

The mean respiration rate (in breaths per minute) of students in a large statistics class is less than 32.

To test this claim the hypothesis can be defined as follows:

<em>H₀</em>: The mean respiration rate of students is 32, i.e. <em>μ</em> = 32.

<em>Hₐ</em>: The mean respiration rate of students is less than 32, i.e. <em>μ</em> < 32.

The sample mean  respiration rate of students is 31.3.

According to the claim the sample mean is less than 32.

The sample mean value is not unusual if the claim is true, and the sample mean value is also not unusual if the claim is false.

Thus, there is not sufficient evidence to support the claim.

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What is the radius of D?<br><br><br><br> 16 cm<br> 8 cm<br> 32 cm<br> 4 cm
Lilit [14]
It’s 8 because in a diameter there are 2 parts so you divided 16 by 2 and u will get 8 and when u add 8 and 8 u get 16.
5 0
3 years ago
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First: State the degree and tell which monomial (term) you determined to be the one as the greatest degree. Second: Classify eac
kobusy [5.1K]

Answer:

1.\text{ }7x^4+5x^2+x-9

  • The term with the greatest degree is 7x^4

  • The polynomial has degree 4 and is classified as a quadratic polynomial of 4 terms.

2.\text{ }7x^6-4x^3+1/x

  • It is not a polynomial.

Explanation:

<em>Polynomials</em> are expressions with terms composed of <em>monomials</em>.

A <em>monomial</em> is an expression formed by the product of a coefficient (constant numbers, like 3, 4/5, or even a root), and a literal part.

The literal part may consist of one or more letters and each letter may be raised to a non-negative integer number (positive or zero).

Hence, for instance, (2/9)x²y⁵z⁴³ is a monomial.

The given expressions are:

       1.\text{ }7x^4+5x^2+x-9

       2.\text{ }7x^6-4x^3+1/x

1.\text{ }7x^4+5x^2+x-9

This expression is a polynomial formed by <em>4 terms </em>or monomials.

The monomials are:

            7x^4,\\ \\ 5x^2,\\ \\ x,\text{ }and\\ \\ 9

The degrees of each monomial are:

         7x^4,\text{ }degree\text{ }4\\ \\ 5x^2,\text{ }degree\text{ }2\\ \\ x,\text{ }degree\text{ }1,\text{ }and\\ \\ 9\text{ }degree\text{ }0

Thus, the one with the <em>greatest degree</em> is 7x^4 . It defines the degree of the of the polynomial; hence <em>the polynomial has degree four and is classified as quartic polynomial of four terms.</em>

2.\text{ }7x^6-4x^3+1/x

This is <em>not a  polynomial</em>, because the letter in the last term, i.e. 1/x has a negative power:

                                1/x=x^{-1}

As stated above, the powers have to be positive integers or zero (for the constant term).

Some special names used to classify the polynomials are:

  •     Degree 1 – linear
  •    Degree 2 – quadratic
  •    Degree 3 – cubic
  •    Degree 4 – quartic
  •    Degree 5 – quintic

 

You can find other classifications in your book or in the internet.

7 0
4 years ago
2 1/4 x 3 2/5<br> show all your work
monitta

Answer:

153/20

Step-by-step explanation:

I assume you're asking

2 \frac{1}{4}  \times 3 \frac{2}{5}

So

\frac{9}{4}  \times  \frac{17}{5}

=

\frac{153}{20}

5 0
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Hii! hopefully you can answer this :)
Gekata [30.6K]

Answer:

1.C

2.A

Step-by-step explanation:

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