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kakasveta [241]
2 years ago
11

the mean weight of trucks traveling on a particular section of i-475 is not known. a state highway inspector needs an estimate o

f the population mean. he selects and weighs a random sample of 81 trucks and finds the mean weight is 15.8 tons. the population standard deviation is 3.8 tons. what is the 95% confidence interval (upper limit) for the population mean?
SAT
1 answer:
bekas [8.4K]2 years ago
4 0

Answer:

14.7 and 16.9

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The league mean batting average is 0.280 with a known standard deviation of 0.06. The Rattlers and the Vikings belong to the lea
enot [183]

Answer:

ummm

Explanation:

3 0
3 years ago
Which of the following is likely not a potential source of income related to the Great Barrier Reef
chubhunter [2.5K]
Merchandising. That is, if that is one of your answer choices. Chances are, they won't be selling the reef any time soon.

8 0
3 years ago
select the three best hypotheses that could explain why the broth in the durham tube appears yellow while the rest of the broth
Tamiku [17]
The test organism ferments sucrose best under reduced oxygen conditions.
The sample was incubated less than 24 hours, which allowed for only limited fermentation.
The media was contaminated.
The organism is an obligate aerobe and therefore can only grow inside the Durham tube.
The media was prepared wrong.
The organism is limited in its ability to ferment sucrose. Since diffusion is restricted within the Durham tube and it contains only a small volume of media, it turned yellow first.
The test organism did not ferment sucrose.

1)The test organism ferments sucrose best under reduced oxygen conditions.
2)The sample was incubated less than 24 hours, which allowed for only limited fermentation.
3)The organism is limited in its ability to ferment sucrose. Since diffusion is restricted within the Durham tube and it contains only a small volume of media, it turned yellow first.
4 0
1 year ago
In a two-digit number the tens digit is 1 more than the units digit. The number itself is 6 times the sum of the digits. Find th
notka56 [123]

Answer:

54

Explanation:
First write the list of numbers which the tens number is one less then ones place.(21,32,43,54,65,76,87,98). Remember this list then add the digits together. If you know your multiplication, the first 5 should be easy to solve so multiple the sum you received from adding the numbers by 6 until you get to one with the same starting number

(21)2+1= 3 x 6= 18

(32)3+2= 5 x 6= 30

(43)4+3= 7 x 6= 42

(54)5+4= 9 x 6= 54

(65)6+5=11

(76)7+6=13

(87)8+7= 15

(98)9+8 = 17

6 0
3 years ago
In feedback regarding an employee's report, which of the following is the MOST positive?
melisa1 [442]
caca and other things sorry i could t help.
6 0
2 years ago
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