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nydimaria [60]
3 years ago
8

What is the value of h?

Mathematics
1 answer:
Furkat [3]3 years ago
4 0

Answer: d

Step-by-step explanation:

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Lynne is 25 years old and starting and IRA (individual retirement account). She is going to invest $150 at the beginning of each
Yuri [45]
The future amount of Lynnes retirement account can be computed using the formula of amortization or annuity:
P = A[(1+i)^n-1)]/(i)
A= amortization
i= 5.5%
n = 40*12 = 480
Subsituting the variables in th formula, Future amount of Lynne in 40 years is equal to
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3 0
3 years ago
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According to a Pew Research Center, in May 2011, 35% of all American adults had a smart phone (one which the user can use to rea
Veronika [31]

Answer:

p_v =P(z>1.82)=0.034  

Assuming a standard significance level of \alpha=0.05 the best conclusion for this case would be:

4. There is not enough evidence to show that more than 35% of community college students own a smart phone (P-value = 0.034).

Because p_v

If we select a significance level lower than 0.034 then the conclusion would change.

Step-by-step explanation:

Data given

n=300 represent the random sample taken

X=120 represent the people who have a smart phone

\hat p=\frac{120}{300}=0.4 estimated proportion of people who have a smart phone

p_o=0.35 is the value that we want to test

z would represent the statistic (variable of interest)

p_v represent the p value (variable of interest)  

System of hypothesis

We need to conduct a hypothesis in order to test the claim that the true proportion of people who have a smart phone is higher than 0.35, the system of hypothesis are.:  

Null hypothesis:p\leq 0.35  

Alternative hypothesis:p > 0.35  

The statistic is given by:

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

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

z=\frac{0.4 -0.35}{\sqrt{\frac{0.35(1-0.35)}{300}}}=1.82  

Statistical decision  

Since is a right tailed test the p value would be:  

p_v =P(z>1.82)=0.034  

Assuming a standard significance level of \alpha=0.05 the best conclusion for this case would be:

4. There is not enough evidence to show that more than 35% of community college students own a smart phone (P-value = 0.034).

Because p_v

If we select a significance level lower than 0.034 then the conclusion would change.

4 0
3 years ago
Y = 3x^2 - 4x<br> 27 + y = 14x
Hatshy [7]

Step-by-step explanation:

move the 27 to the other side of the equation like this

y = 14x - 27

use this equation and substitute it into the y value of the first equation

4 0
3 years ago
Ryan had a balance of −$767.25 in his bank account, and Tim had a balance of −$556.75 in his bank account. Which statement expla
kipiarov [429]

Answer: -767.25<-556.75

Explanation: Ryan has less money than tim therefore making him owe the bank more

8 0
3 years ago
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If Mike has m pencils and Jen has three times as many pencils as Mike, how many more pencils does Jen have?
tiny-mole [99]

Answer:

If Sarah has three times as many pencils as Mike she has 3  times the number of pencils Mike has which is equivalent to 3 * m. That means Mike has m pencils and Sarah has 3m pencils. they have m + 3m pencils. The expression would be total:  m + 3m.

Step-by-step explanation:

4 0
2 years ago
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