1-2. The best estimate for the population mean would be sample mean of 60 gallons. Since we know that the sample mean is the best point of estimate. Since sample size n=16 is less than 25, we use the t distribution. Assume population from normal distribution.

3. Given a=0.1, the t (0.05, df = n – 1 = 15)=1.75

4. xbar ± t*s/vn = 60 ± 1.75*20/4 = ( 51.25, 68.75)

5. Since the interval include 63, it is reasonable.

3 0

3 years ago

Can u help with these two

Artemon [7]

The volume of a rectangular prism can be given by the form
$V= b*h*w$

you know Volume, base, and height but you dont know width

so divide b and h to both sides
$\frac{V}{b*h} = w$
and you cna solve for width

now for 6.
dividing by a number is the same as multiplying by its reciprocal

$n \div 6 = n * \frac{1}{6}$

8 0

3 years ago

Read 2 more answers

VERY IMPORTANT QUESTION I WILL GIVE 50 POINTS TO WHOEVER ANSWERS THIS QUESTION

solmaris [256]

I think it might be expression one =14 i think and number 2 is obviously is 19 but you would put parenthesis around 5+4_2+6

I think i did this right its been a while since i did this

8 0

3 years ago

Each marble bag sold by Rita’s marble company contains 4 green marbles for every 5 yellow marbles. If a bag has 35 yellow marble

alexandr402 [8]

Answer:

24 green marbles

Step-by-step explanation:

ez maths

5 0

3 years ago