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dybincka [34]
3 years ago
6

Determine the sample size required to estimate the mean score on a standardized test within 4 points of the true mean with 98% c

onfidence. Assume that s = 15 based on earlier studies.
Mathematics
1 answer:
Darina [25.2K]3 years ago
3 0

Answer:

67

Step-by-step explanation:

You have to use fractions to show your work and I'm not going to do that but just know that it is the answer.

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Mr. Smith ate a snack with 80.79 total calories. If the chips he ate were 43.39 calories, how
Paul [167]

Answer:

37.40 calories

Hope this helps :)

4 0
4 years ago
SOMEONE HELP PLEASEEEE
pochemuha
Hello!
Ok so we have given values of angle 4 and angle 2. Sum of interior angles of a triangle equal 180deg. So if angle 4 is 120deg that makes the measure of angle 3 the supplement angle, equal to 180-120=60deg. So then we have angle 1 equal to 180 - 60 - 35= 85deg. Then from that we can conclude the measure of angle 5 is equal to 95deg.

Hope this helps! Any questions please ask! Thank you!
5 0
3 years ago
Jerry's return trip took 2/5 hour longer. How long did his return trip take?
Vedmedyk [2.9K]
It took him 4 1/5 hours to get home
5 0
3 years ago
Solve the system of equations. y=4x+5y=x2+12x+20
Viefleur [7K]

Answer:

 \begin{pmatrix}x=-3,\:&y=-7\\ x=-5,\:&y=-15\end{pmatrix}\\

Step-by-step explanation:

\begin{bmatrix}y=x^2+12x+20\\ y=4x+5\end{bmatrix}

\mathrm{Subtract\:the\:equations}

y=x^2+12x+20

y-y=x^2+12x+20-\left(4x+5\right)

\mathrm{Simplify}

0=x^2+8x+15

3 0
2 years ago
A farmer has 113 sheep. 47 of them are males. How many more female sheep are there than make sheep?
Karo-lina-s [1.5K]

113-47 = 66 female sheep

66-47 = 19

19 more female sheep than male sheep

4 0
4 years ago
Read 2 more answers
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