3 years ago

Help I don’t get these at all

Mathematics

1 answer:

uysha [10]3 years ago

5 0

Answer: its D. 24

Step-by-step explanation:

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A candy company claims that its jelly bean mix contains 15% blue jelly beans. Suppose that the candies are packaged at random in

I am Lyosha [343]

Answer:

Doubtful.

Step-by-step explanation:

Our values are,

$P=0.15 \rightarrow 15\%$ Jelly Bean Mix.

The sample for us is n=200

And our proportion (x) is 40 .

We can calculate with this dates the sample proportion and make he test statistic.

$p=\frac{x}{n} = \frac{40}{200} = 0.20$

$H_0:P=0.15$

$H_1:P \neq 0.15$

We use the formula for Test statistic, that is given by,

$z= \frac{p-P}{\sqrt{\frac{P-(1-P)}{n}}}$

$z= \frac{0.20-0.15}{\sqrt{\frac{0.15(1-0.15)}{200}}}$

$z= 1.98$

We see that our P-value: 0.048 (From the Table)

We note that p-value is less than 0.05, so we should to rejecyt the null hypothesis and conclude that the calim is doubtful

4 0

3 years ago

The triangles shown below must be congruent.

leonid [27]

These triangles are congruent by AAS condition hence the statement is true

7 0

3 years ago

Read 2 more answers

Speed=60 km/h time= 2 hours 20 minutes, what is the distance?

daser333 [38]

Answer:

26km

Step-by-step explanation:

d=speed × time

d=60×2.33

d= 140km

8 0

3 years ago

146*146<br><br> i will mark you the MOST brainlest PERSON on Earth

Katyanochek1 [597]

Answer:

21,316! hope that helps lol

7 0

4 years ago

What is the value of the exponential function f (x)=2 times (1/3)^x when x= -2

frutty [35]

Answer:

Step-by-step explanation:

f(x) = 2(1/3)^x

[x = -2]

f(-2) = 2(1/3)⁻²

= 2(9)

= 18

5 0

2 years ago