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3 years ago

3 classmates share 2 granola bars equally.

Mathematics

1 answer:

umka21 [38]3 years ago

5 0

Answer:

3/2 or 1.5

Step-by-step explanation:

the answer would be 3/2 because the number of classmates divided by the number of granola bars equals how much each classmate would get in all.

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A study was conducted to compare the proportion of drivers in Boston and New York who wore seat belts while driving. Data were c

allochka39001 [22]

Answer:

a) The test statistic is $z = -2.51$

b) The pvalue is 0.0060.

Step-by-step explanation:

Question a:

Ha: pB < pNY

This means that the alternate hypothesis is rewritten as:

$H_a: p_{B} - p_{NY} < 0$

While the null hypothesis is:

$H_0: p_{B} - p_{NY} = 0$

The test statistic is:

$z = \frac{X - \mu}{s}$

In which X is the sample mean, $\mu$ is the value tested at the null hypothesis and s is the standard error

pB = 0.581, pNY = 0.832

This means that $X = 0.581 - 0.832 = -0.251$

0 is tested at the null hypothesis:

This means that $\mu = 0$

Standard error = 0.1

This means that $s = 0.1$

Test statistic:

$z = \frac{X - \mu}{s}$

$z = \frac{-0.251 - 0}{0.1}$

$z = -2.51$

The test statistic is $z = -2.51$

Question b:

The pvalue is the probability of finding a proportion less than -0.251, that is, a difference of at least 0.251, which is the pvalue of Z = -2.51.

Looking at the z-table, Z = -2.51 has a pvalue of 0.0060

The pvalue is 0.0060.

5 0

3 years ago

What is the missing length I took a picture help me plz

kakasveta [241]

10 yd. Because 16-6=10.

5 0

3 years ago

HURRY PLS What is the ratio of cookies with a bite out of them to cookies without a bite taken? *

marta [7]

Answer

1/4

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

I actually put two questions here... please help!

Verdich [7]

1) You know the height of the bird from the observer is the same as the height of the plane to tower. We also know that the angle of depression is same as the angle of elevation.

So we will use the tangent function to find the value of x.

tan 23 = 5000 / x
x = 5000 / tan 23
x = 11779

You're answer will be 11779 feet

2) We will use the sine function.

sin 35 = 17,000 / x
x = 17,000 / sin 35
x = 29638.6

So the answer would be approximately 29639

4 0

3 years ago

Help please FAST please

butalik [34]

The answer would be C

3 0

4 years ago