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vova2212 [387]
3 years ago
5

If 50 students were surveyed, how many chose

Mathematics
1 answer:
exis [7]3 years ago
4 0
Eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee
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The FDA is testing a new ointment designed to deliver 3.5 micrograms of active ingredient to each square centimeter of skin. Nin
lions [1.4K]

Answer:

t(c)  =  3.355

Step-by-step explanation:

We assume a normal distribution, and with sample size n = 9 we should follow a t -student test on both tails since the FDA is interested in determining if the amount of drug absorbed is different from 3.5 micrograms.

Therefore if α  = 0,01    that means that confidence interval is 99 % or 0,99

Finally with   α/2 = 0,005   and 8 degrees of freedom we find in t-student table  t(c)  =  3.355

8 0
3 years ago
How many times does seven go into three hundred ninety four
Nookie1986 [14]

Answer: 56 times.

Step-by-step explanation:

394/7 = 56.3

56 * 7 = 392

392 + 7 = 399

399 is more than 394, therefore the answer is 56.

6 0
3 years ago
Read 2 more answers
Given: f(x)=x^2, g(x)=x+6, h(x)=7<br><br>Find h{g[f(x)]}​
arsen [322]

Step-by-step explanation:

f(x)=x^2,\ g(x)=x+6,\ h(x)=7\\\\h(x)=7\ \text{It's the constant function. Therefore}\ h\{g[f(x)]\}=7

4 0
4 years ago
The graph of the function y=f(x)
jarptica [38.1K]
The range is the high and low points. 

So (5, 2] 
5 0
3 years ago
In two years what percent of his age will Benny’s mom be at that time since Benny is 12 and his mom is 48
Ksju [112]

Answer:

His mom’s age will be 1/% of Benny’s age at that time.

Step-by-step explanation:

14>>100%

1>>(100/14)%

50>>50(100/14)%

50>>25(100/7)%

50>>(2500/7)%

50>>357 1/7%

so in two years Benny will be 14 and his mom will be 50.

7 0
3 years ago
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