3 years ago

I need the answers bad

Mathematics

1 answer:

Margarita [4]3 years ago

5 0

Answer:

m<1=72

m<2=72

m<4=72

Step-by-step explanation:

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Refer to the accompanying TI-83/84 Plus calculator display of a 95% confidence interval. The sample display results from using a

nikklg [1K]

Answer:

The confidence interval is $22.805$

Step-by-step explanation:

We have given,

The Z interval (23.305,25.075)

Mean $\bar{x}=23.69$

Sample n=30

To find : The confidence interval?

Solution :

We know, The confidence interval is in the format of

$\bar{x}-E$

E denotes the margin of error,

$E=\frac{U-L}{2}$

Where, U is the upper limit U=25.075

L is the lower limit L=23.305

$E=\frac{25.075-23.305}{2}$

$E=\frac{1.77}{2}$

$E=0.885$

Substitute the value of E and $\bar{x}$ in the formula,

$23.69-0.885$

$22.805$

Therefore, The confidence interval is $22.805$

8 0

4 years ago

Simplify the expression. -2.7f + 0.8f - 16 - 4

Mazyrski [523]

Answer:

-1.9f-20

Step-by-step explanation:

-2.7f+0.8f-16-4

Collect similar items

-2.7f+0.8f=-1.9f

=-1.9f-16-4

Subtract the numbers

-16-4=-20

=-1.9f-20

4 0

2 years ago

Read 2 more answers

Which statement explains how the lines x + y = 2 and y = x + 4 are related?

zysi [14]

Answer: X = -1 and Y = 3
—————————————
X + Y = 2
X = 2 - Y
————————
Y = x + 4
Y = 2 - Y + 4
2Y = 2 + 4
2Y = 6
Y = 3
————————
X + Y = 2
X + 3 = 2
X = -1

8 0

3 years ago

Sweets cost 6p how much would 43 sweets cost?

SCORPION-xisa [38]

The answer is 258 pennies

7 0

3 years ago

in 1996,Donovan Bailey of Canada ran the 100 meter dash in 9.84 seconds.How fastis that to the nearst second?to the nearst tenth

Fofino [41]

I think that you round to 9.80 seconds. Pardon me, I didn't understand the problem well

7 0

4 years ago