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dalvyx [7]
3 years ago
12

We have seen that drinking tea appears to offer a strong boost to the immune system. In a study extending the results,1 blood sa

mple was taken on 5 participants before and after one week of drinking about five cups of tea a day (the participants did not drink tea before the study started). The before and after blood samples were exposed to e.coli bacteria, and the production of interferon-gamma, a molecule that fights bacteria, viruses, and tumors, was measured. Mean production went from 155 pg/mL before tea drinking to 448 pg/mL after tea drinking. The mean difference for the 5 subjects is 293 pg/mL with a standard deviation in the differences of 242. The paper implies that the use of the t-distribution is appropriate.
(a) Use the information to test whether the mean production of interferon-gamma as a response to bacteria is significantly higher after drinking tea than before drinking tea. Use a 5 % significance level.
(b) Give the test statistic and the p-value
Round your answer for the test statistic to two decimal places and your answer for the p-value to three decimal places.
(c) Is there evidence that the mean production of interferon-gamma is higher after drinking tea?
Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
5 0

Answer:

Hey i dont know the answer bc I’m too dumb

Step-by-step explanation:

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By the Pythagorean Theorem:

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2 years ago
An isosceles triangle has an angle that measures 38degrees. What measures are possible for the other two angles? Choose all that
Sphinxa [80]

Answer:

  • 71° and 71°.

⠀

Step-by-step explanation:

The triangle having two sides equal along with one different side is called an isosceles triangle.

⠀

  • So, Let us assume the other sides (two equal sides) of the isosceles triangle as x. As the different side is already given in the question.

⠀

We know that,

  • The sum of all angles of a triangle is 180°

⠀

So, According to the question :

⠀

{\longrightarrow \it\qquad { \ { {  38 \: }^{ \circ}   + x + x  =  180{}^{ \circ} }}}

⠀

{\longrightarrow \it\qquad { \ { {  38 \: }^{ \circ}   + 2x   =  180{}^{ \circ} }}}

⠀

{\longrightarrow \it\qquad { \ {   2x   =  180{}^{ \circ} - {  38 \: }^{ \circ}}}}

⠀

{\longrightarrow \it\qquad { \ {   2x   =  142{}^{ \circ}  }}}

⠀

{\longrightarrow \it\qquad { \ {   x   =    \dfrac{142{}^{ \circ}}{2}   }}}

⠀

{\longrightarrow \it\qquad { \pmb {   x   =  71^{ \circ}  }}}

⠀

Therefore,

  • The measure of the two other angles of the isosceles triangle are 71° and 71°.
3 0
2 years ago
A display case for the artifact is in the shape of a cube. Each side of the display case is three times longer than the width ww
Katena32 [7]
A cube is a 3d object bounded by  6 square faces. 

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Volume = (3w)</span>³

<span>Volume = 27w</span>³<span>

</span>
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3 years ago
Kay has a playlist of 10 songs. She has time to listen to 4 of the songs on her way to school.
Masteriza [31]

Answer:

40 different arrangements of songs

Step-by-step explanation:

8 0
2 years ago
At a sale this week, a Michael Kors bag is on sale for $258.40. This is a 62% discount off the original price. What is the origi
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$680 was the original price!

100-62=38

258.40 x 100= 25840

25840/38=680
8 0
2 years ago
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