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allochka39001 [22]

3 years ago

9

(MUST ANSWER. NOW!! 30 POINTS AND BRAINLEST) Phoebe drew a triangle with side lengths 3, 4, and 5. She wants to make a scaled co

py that is smaller than the original. Which scale factor below would make the triangle smaller?
1.) 1/2
2.) 1
3. )2
4.) 6

1 answer:

hoa [83]3 years ago

7 0

A) 1/2
Because this scale factor is smaller than 1, which means it’s making it smaller than the original.

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For this open-ended question, write your own unique word problem that could be represented by the equation

Elza [17]

i love these types of problems! i'm going to use my name, cherry, if that's ok.

cherry had 10 buttons in her collection. cherry made a deal with a friend that allowed her to receive 5 new buttons per week. after a certain number of weeks, cherry had acquired a total of 50 buttons! how many weeks had cherry's friend given her buttons?

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3 years ago

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A study will be conducted to investigate whether there is a difference in the mean weights between two populations of raccoons.

enyata [817]

Answer:

<h2>In this case,the answer would be option d) given in the answer choices or options or A two-sample t-test for a difference between population means.</h2>

Step-by-step explanation:

In Statistics,a two sample test is generally used to examine or compare two different population means with the main objective to verify whether the population means are equal or otherwise.
The two sample t-test basically involves the hypothesis testing to determine or verify the equality between two concerned population means.
In this case,the two different populations of raccoons are given and the equality of the mean sample weights of the two distinct populations can be determined or evaluated by employing the hypothesis testing method under a two sample t test for measuring difference in two population means.

5 0

3 years ago

NeTakaya

Answer:

Is there a table/image?

Step-by-step explanation:

4 0

3 years ago

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What is the domain of the function?

jekas [21]

A good clear graph is given. By identifying the x-values for which this graph exists, we can identify the domain. This graph begins at x = -3 and continues forever as x increases. Thus, the domain of this function is [-3, infinity).

7 0

3 years ago

The bad debt ratio for a financial institution is defined to the dollar value of loans defaulted divided by the total dollar val

vlabodo [156]

Answer:

Step-by-step explanation:

From the information given:

Consider X to be the random variable denoting the bad debt ratios for Ohio Bank.

Then, $X \sim N ( \mu, \sigma ^2)$

Thus the null hypothesis and the alternative can be computed as:

Null hypothesis:

$H_o : \mu \leq3.5\%$

Alternative hypothesis

$H_1 : \mu > 3.5\%$

The type I and type II error is as follows:

Type I:

The mean bad debt ratio is > 3.5% when it is not

Type II:

The mean bad debt ratio is ≤ 3.5% when it is not.

The test statistics can be calculated by using the formula:

$t = \dfrac{\overline x - \mu}{\dfrac{\sigma}{\sqrt{n}}}$

where;

sample size n = 7

mean = 6+8+5+9+7+5+8 = 48

sample mean $\overline x =\dfrac{48}{7}$

$\overline x$ = 6.86

sample standard deviation is :

$s = \sqrt{\dfrac{\sum( x -\overline x)^2}{n-1}}$

$s = \sqrt{\dfrac{( 6 -6.86)^2+( 8-6.86)^2+ ( 5 -6.86)^2 + ...+( 7 -6.86)^2+ ( 5 -6.86)^2+( 8 -6.86)^2 }{7-1}}$

s = 1.573

population mean $\mu = 3.5$

Therefore, the test statistics is :

$t = \dfrac{\overline x - \mu}{\dfrac{\sigma}{\sqrt{n}}}$

$t = \dfrac{6.86- 3.5}{\dfrac{1.573}{\sqrt{7}}}$

$t = \dfrac{3.36}{\dfrac{1.573}{2.65}}$

$t = \dfrac{3.36\times {2.65}}{{1.573}}$

t = 5.660

At significance level of 0.01

$t_{0.01} = 3.707$

P - value = P(T > 5.66)

P - value = 1 - (T < 5.66)

P - value = 1 - 0.9993

P-value = 0.0007

Therefore, since $t_{0.01} < t$ , we reject the null hypothesis and conclude that the claim that the mean bad debt ratio for Ohio banks is higher than the mean for all financial institutions is true.

4 0

4 years ago