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Savatey [412]
2 years ago
9

Which measurement statement is correct?

Mathematics
1 answer:
Nesterboy [21]2 years ago
8 0

Answer:

There are 2 cups in a pint is correct

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Use the normal distribution and the given sample results to complete the test of the given hypotheses. Assume the results come f
AlladinOne [14]

Answer:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

Step-by-step explanation:

Data given and notation

n=75 represent the random sample taken

\hat p=0.64 estimated proportion of interest

p_o=0.5 is the value that we want to test

\alpha=0.05 represent the significance level

Confidence=95% or 0.95

z would represent the statistic

p_v represent the p value

System of hypothesis

We want to verify if the true proportion is higher than 0.5:  

Null hypothesis:p =0.5  

Alternative hypothesis:p > 0.5  

The statistic is given by:

z=\frac{\hat p -p_o}{\sqrt{\frac{p_o (1-p_o)}{n}}} (1)  

Replacing the info given we got:

z=\frac{0.64 -0.5}{\sqrt{\frac{0.5(1-0.5)}{75}}}=2.43  

Now we can calculate the p value with the following probability:

p_v =P(z>2.43)=0.0075 \approx 0.008  

Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportion for this case is higher than 0.5

7 0
3 years ago
Find the value of (-64)2/3
Marizza181 [45]

Answer:

-42.66666...

Step-by-step explanation:

-64 * 2/3 is -42.66666...

well, according to the calculator.

7 0
3 years ago
Read 2 more answers
What's the answer of the this-48.3÷(-7)​
goblinko [34]

the answer is 6.9.

When you divide a negative by a negative it is a positive

4 0
3 years ago
Points (−3, 5) and (3, 5) on the coordinate grid below show the positions of two players on a tennis court:
Goshia [24]

Answer:

D

Step-by-step explanation:

-3 and 3 are opposites but 5 (y), is the same

6 0
2 years ago
How much is this worth? Twice as much as 5 dimes and 3 pennies *
Savatey [412]

Answer:

106

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
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