A(y+c) =b(y-c) solve for y

A bottle maker believes that 14% of his bottles are defective. If the bottle maker is accurate, what is the probability that the

Hitman42 [59]

Answer:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

Step-by-step explanation:

For this case we know the following info given:

$p =0.14$ represent the population proportion

$n = 622$ represent the sample size selected

We want to find the following proportion:

$P(\hat p$

For this case we can use the normal approximation since we have the following conditions:

i) np = 622*0.14 = 87.08>10

ii) n(1-p) = 622*(1-0.14) =534.92>10

The distribution for the sample proportion would be given by:

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

The mean is given by:

$\mu_{\hat p}= 0.14$

And the deviation:

$\sigma_{\hat p}= \sqrt{\frac{0.14*(1-0.14)}{622}}= 0.0139$

We can use the z score formula given by:

$z=\frac{\hat p -\mu_{\hat p}}{\sigma_{\hat p}}$

And replacing we got:

$z = \frac{0.11-0.14}{0.0139} = -2.156$

And we can use the normal standard distribution table and we got:

$P(Z$

4 0

3 years ago

Nigel bought 10 pencils and 5 erasers for $8. The price of 2 pencils was $1.What was the price of 2 erasers?

DochEvi [55]

$1.66

because $1 is for 2 pencils. Now, 10 pencils is $5 since 2 pencils is $1. $5 is for 10 pencil and 5 eraser is the $3 because 8-5=$3.

$3 is for 5 eraser. So, now do 5÷3=1.666....
You can just make it $1.66

8 0

2 years ago

Help meeeeeeeeeeeeeeeeeeee

Yanka [14]

I think the interquartile range is 13. Hope it help!

7 0

3 years ago

Noelle has containers that each hold one gallon of liquid. She used these containers to dispose of waste from the chemistry labo

Andrej [43]

Answer:

4 containers.

Step-by-step explanation:

Since Noelle collected 3 quarts 1 pint of liquid from the first table, the amount of liquid collected in quarts is 3 quarts + 1 pint = 3 quarts + 1 pint × 1 quarts/2 pints = 3 quarts + 0.5 quarts = 3.5 quarts.

She also collected 4 quarts from the second table, 2 quarts from the third table.

Finally, she collected collected 3 quarts 1 pint of liquid from the fourth table, the amount of liquid collected in quarts is 3 quarts + 1 pint = 3 quarts + 1 pint × 1 quarts/2 pints = 3 quarts + 0.5 quarts = 3.5 quarts.

So, the total amount of liquid she collected in quarts is V = 3.5 quarts + 4 quarts + 2 quarts + 3.5 quarts = 7.5 quarts + 5.5 quarts = 13 quarts

We now convert this value to gallons to know the amount of containers Noelle needs since she has one gallon containers.

13 quarts = 13 × 1 quarts = 13 quarts × 1 gallon/4 quarts = 13/4 gallons = 3.25 gallons

Since the total amount of liquid is 3.25 gallons = 3 gallons + 0.25 gallons, Noelle would need 4 containers since 3 containers would contain the first 3 gallons and the fourth container would contain the remaining 0.25 gallons.

So, Alyssa would need 4 containers.

8 0

2 years ago

Natasha has 3 pounds of apples and 2 and 1/2 pounds of grapes if she gives 1/3 of a apples to Silvie how many pounds of apples d

Vikentia [17]

Your answer is 2 and 3/4

4 0

2 years ago

Read 2 more answers