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AnnyKZ [126]
3 years ago
14

A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Listed below are the amounts of m

ercury​ (ppm) found in tuna sushi sampled at different stores in a major city. Construct a 98​% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna​ sushi?
0.550.55
0.830.83
0.110.11
0.960.96
1.251.25
0.510.51
0.950.95
Mathematics
1 answer:
posledela3 years ago
7 0

Answer:

Check the attached document for the solutions, cheers

Step-by-step explanation:

Download docx
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Suppose that a large pumpkin empty a swimming pool in 40 hours and that a small pumpkin empty a pool and 70 hours working togeth
Norma-Jean [14]

Answer:

Total 25.45 hours will be taken to empty the pool.

Step-by-step explanation:

Time taken by large pumpkin to empty the pool=40 hours

Time taken by the smaller pumpkins to empty the pool=70 hours

Amount of pool emptied by large pumpkin in one hour=\frac{1}{40}

Amount of pool emptied by small pumpkin in one hour=\frac{1}{70}

Amount of pool emptied in one hour if both pumpkins work together=

\frac{1}{40}+ \frac{1}{70}

=\frac{11}{280}

Therefore, the no. of days will be the reciprocal of the amount of work done in one hour ie . \frac{280}{11}

Total 25.45 hours will be taken to empty the pool.

5 0
3 years ago
Assuming that Hamid’s revenue is found by multiplying the book price by the number of copies sold, create an equation (in standa
Vadim26 [7]

An equation of Hamid’s revenue by multiplying the book price by the number of copies sold is  x = ny.

<h3>What is an equation?</h3>

The process of equating one thing with another.

Let Hamid’s revenue is $x and the price of book is $y.

If he sold n number of copies.

Then, the general equation will be x = n * y.

Therefore, an equation of Hamid's revenue will be x = ny.

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5 0
1 year ago
State The Absolute value and the opposite of the number. -24, 8, 31, -17​
marshall27 [118]

24

8

31

17

absolute value with positive numbers are always positive if I remember correctly.

oooo and the opposite

24

-8

-31

and 17

4 0
3 years ago
What is the measure of angle 3?
____ [38]

Answer:

c.45 degrees

Step-by-step explanation:

90 -180= 90

90÷2=45

8 0
3 years ago
Read 2 more answers
(-8+1.5)x4/5 <br><br> Help please
fenix001 [56]

Answer:

-5.2

Step-by-step explanation:

-8+1.5 = -6.5

-6.5 * 4/5 = -6.5 * 0.8 = -5.2

7 0
2 years ago
Read 2 more answers
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