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aliya0001 [1]
3 years ago
15

Help please Number 4!!! Please show me how you did it!!

Mathematics
1 answer:
Dmitriy789 [7]3 years ago
3 0
I can’t see nothing
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A dairy scientist is testing a new feed additive. She chooses 13 cows at random from a large population of cows. She randomly as
mina [271]

Answer:

Step-by-step explanation:

Given that a dairy scientist is testing a new feed additive. She chooses 13 cows at random from a large population of cows. She randomly assigns nold = 8 to get the old diet, and nnew = 5 to get the new diet including the additive.

From the data given we get the following

           N       Mean      StDev     SE Mean

Sample   1    8           43       5.1824 1.832

Sample   2   5           73     21.0832 9.429

df = 11

Std dev for difference = 13.3689

a) Yes the two are independent.  The two sets of cows randomly chosen are definitely independent. Paired means equal number should be there and homogeneous conditions should be maintained.

b) Enclosed

c) Comparison of two means is the test recommended here.  Because independent samples are used.\

d) Test statistic= -3.1233

(because of unequal variances we use that method)

95% confidence interval =  ( -56.6676 , -3.3324 )

p value <0.05 our alpha

So reject null hypothesis.

The two means are statistically significantly different.

3 0
3 years ago
What is the volume of this prism 10mm 8mm 12mm 3mm 2mm
Solnce55 [7]

Answer:

5760 mm

Step-by-step explanation:

just multiply lol

3 0
2 years ago
Can the common ratio of geometric sequence be equal to 0?
NeTakaya

Answer:

No it cant

Step-by-step explanation:

it cant

8 0
3 years ago
THANK YOU!!
lilavasa [31]

Step-by-step explanation:

x° + 61°+ 68° + 104° = 180°

x° + 129°+104°=180°

x°+133°=180°

x°=180°-133°

x=47°

8 0
3 years ago
Six hikers shared 4 1/2 lbs of trail mix. How much trail mix did each hiker receive?
babunello [35]
6 hikers = 4.5 lbs of trail mix

4.5 divided by 6= .75 lbs each hiker.
3 0
3 years ago
Read 2 more answers
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