Basically, I just made a money table and used it to get my equation, which is: 60x-30=330, to get how many quarters there are. Then, plug that in to the problem and you have your answer.

4 0

3 years ago

Marketing companies are interested in knowing the population percent of women who make the majority of household purchasing deci

zimovet [89]

Answer: 271

Step-by-step explanation:

As per given description in the question, we have

Critical value for 90% confidence interval = $z_{\alpha/2}=1.645$

[using z-value calculator ]

Margin of error : E= 0.05

Since prior estimate of population proportion is unknown so we take p= 0.5

Formula we use to find the sample size :

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$ [we assume p= 0.50]

i.e. $n=0.5(1-0.5)(\dfrac{1.645}{0.05})^2$

Simplify :

$\Rightarrow\ n=270.6025\approx271$

Therefore , the minimum sample size required = 271

3 0

3 years ago

For 3/4 of a pound of peanuts, jimmy paid $2.35. What is the unit rate (dollars per pound)?

lora16 [44]

I think its $ 3.13 I'm not positive tho

5 0

3 years ago

Which is the reciprocal of -13/7

andrey2020 [161]

Answer:

-7/13

Step-by-step explanation:

To find the reciprocal of a number, either divide the number by 1 or switch the numerator and denominator

4 0

3 years ago