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2 years ago

Each pencil cost 10 cents how many pencils can you buy if you have 18 dollars

1 answer:

4 0

180 I’m pretty sure look 1x10x100(cents)x18(dollars)/100 if it’s not that if it’s a not a pair of questions then it’s either 180 or 1,800

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Suppose a large shipment of microwave ovens contained 12% defectives. If a sample of size 474 is selected, what is the probabili

melisa1 [442]

Answer:

$P(\hat p>0.14)$

And using the z score given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

Where:

$\mu_{\hat p} = 0.12$

$\sigma_{\hat p}= \sqrt{\frac{0.12*(1-0.12)}{474}}= 0.0149$

If we find the z score for $\hat p =0.14$ we got:

$z = \frac{0.14-0.12}{0.0149}= 1.340$

So we want to find this probability:

$P(z>1.340)$

And using the complement rule and the normal standard distribution and excel we got:

$P(Z>1.340) = 1-P(Z$

Step-by-step explanation:

For this case we have the proportion of interest given $p =0.12$ . And we have a sample size selected n = 474

The distribution of $\hat p$ is given by:

$\hat p \sim N (p , \sqrt{\frac{p(1-p)}{n}})$

We want to find this probability:

$P(\hat p>0.14)$

And using the z score given by:

$z = \frac{\hat p -\mu_p}{\sigma_p}$

Where:

$\mu_{\hat p} = 0.12$

$\sigma_{\hat p}= \sqrt{\frac{0.12*(1-0.12)}{474}}= 0.0149$

If we find the z score for $\hat p =0.14$ we got:

$z = \frac{0.14-0.12}{0.0149}= 1.340$

So we want to find this probability:

$P(z>1.340)$

And using the complement rule and the normal standard distribution and excel we got:

$P(Z>1.340) = 1-P(Z$

4 0

3 years ago

Select all that apply. Which lines have a slope of -2? Line a line b line c line d

katrin2010 [14]

Do you have a photo of the options?

8 0

2 years ago

Read 2 more answers

What is 5/14 simplified ? Need answer ASAP.

iogann1982 [59]

Answer:

5/14

Step-by-step explanation:

5/14 is the simplified form.

6 0

3 years ago

Read 2 more answers

Dana has ⅘ cup of ice cream. How many ⅛ cup servings are in ⅘ cup of ice cream?

mario62 [17]

Answer:

A 6.4

Step-by-step explanation:

(4/5)/(1/8) this is the answer

8 0

3 years ago

Read 2 more answers

A library charges a late return fee of 3.50 plus $0.15 per day that a book is returned late write a equation to find the total l

joja [24]

The equation would be:

3.50 + 0.15x

x represents each 'late day'

7 0

2 years ago