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3 years ago

6

Four math classes recorded and displayed student heights to the nearest inch in histograms. Which histogram can be described as

skewed left?

2 answers:

Vsevolod [243]3 years ago

7 0

Answer:

The answer is the last graph

kari74 [83]3 years ago

3 0

the answer is d (or the last graph)

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According to a study by the American Pet Food Dealers Association, 63 percent of U.S. households own pets. A report is being pre

Elis [28]

Answer: 2.511 lies in the rejection region, so we will reject the null hypothesis.

jhgjhghjh

Step-by-step explanation:

Since the null and alternate hypothesis are :

$H_0:\pi =0.63\\\\H_1:\pi \neq 0.63$

Since there is 0.05 level of significance,

So, there will be two tail test:

As we know that

z = -1.96 or z = 1.96

If the test statistic does not fall in the range of -1.96 to 1.96, we will reject the null hypothesis.

So, it becomes,

$z=\dfrac{p-\pi }{\sqrt{\dfrac{\pi(1-\pi)}{n}}}\\\\z=\dfrac{0.7-0.63}{\sqrt{\dfrac{0.63.\times 0.37}{300}}}\\\\z=2.511$

Since 2.511 lies in the rejection region, so we will reject the null hypothesis.

Hence, People does not seem to be representative of the Pet Food survey respondents.

6 0

3 years ago

An amount of 45,000 is borrowed for 12 years at 4.25% interest, compounded annually. If the loan is paid in full at the end of t

alukav5142 [94]

Answer:

The answer to your question is $79,749, to the nearest dollar.

Step-by-step explanation:

45 thousand dollars at 4.5 percent compounded annually for 13 years?

After one year the loan would accrue 4.5% interest, which is 0.045 times $45,000 dollars. Added to the base ($45000) this is (1 + 0.045)* $45,000, or $47,025. (Just over two thousand dollars interest.)

After two years we do this again with the new base, so it is $47,025 times (1.045), or $45,000 times (1.045) times (1.045) which can be written:

45000(1.045)2=49141.125 dollars.

You can see where this is going, I hope. After the thirteenth year we get:

45000(1.045)13≏79,748.8243759089 dollars.

7 0

3 years ago

Abraham Lincoln was the tallest president. His height was 76 inches. How tall was Abe in feet?

m_a_m_a [10]

He was 7ft and 4 inches I think

7 0

3 years ago

The sum of the measures of three adjacent angles is 150°. The measures of the angles are in the ratio of 1:2:3. What is the mea

stellarik [79]

Answer:

14•4°

step by step explanation:

ratio=1:2:3=6

angles in degree=150°

6/150°×360°(simplify)

6/5°×12°

=72°/5°

=14•4°

The largest angle=14•4°

Thanks hope it helps

8 0

3 years ago

3x-17=-41. answer for x pls<br>

Nikitich [7]

Answer: x = -8

Step-by-step explanation:

Move all terms that don't contain x to the right side and then solve

4 0

2 years ago

Read 2 more answers