Answer:
The probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.
Step-by-step explanation:
According to the Central limit theorem, if from an unknown population large samples of sizes <em>n</em> > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.
The mean of this sampling distribution of sample proportion is:
The standard deviation of this sampling distribution of sample proportion is:
Let <em>p</em> = the proportion of keypads that pass inspection at a cell phone assembly plant.
The probability that a randomly selected cell phone keypad passes the inspection is, <em>p</em> = 0.77.
A random sample of <em>n</em> = 111 keypads is analyzed.
Then the sampling distribution of 
is:
Compute the probability that the proportion of passed keypads is between 0.72 and 0.80 as follows:
Thus, the probability that the proportion of passed keypads is between 0.72 and 0.80 is 0.6677.
Answer:
15. 1/3 times 1/3 times 1/3 times 1/3 and 1/81
16. 3/4 times 3/4 and 9/16
17. 2 to the 5th power
18. 4 to th2 4th power
19. 2 to the 4th power, 5 to the 2nd power, and 3 to the 3rd power
Step-by-step explanation:
Hope this helps
The value per share is 50 per share.
In order to find this, you take the total value of the stock and then divide by the number of shares.
200,000/4,000 = 50.
Therefore, it is 50 per share.
Answer:
The unit price for the 7.03 kg bag is about $1.78 per kg. The unit price for the 7.98 kg bag is about $1.83 per kg. The 7.03 kg is a better deal because you pay less per kg.
Step-by-step explanation:
1) To find the unit price, you need to find the price per unit. The unit here being kg. So, you need to divide the price by the number of units.
2) Here is this written out...
7.03 kg bag:
$12.53 / 7.03 kg = 1.78236130868 dollars per kg, or about $1.78 per kg
7.98 kg bag:
$14.64 / 7.98 kg = 1.83458646617 dollars per kg, or about $1.83 per kg
3) As you can see, if Joe purchases the 7.98 kg bag of dog food, he is paying more for every kg of dog food than if he were to purchase the 7.03 kg bag of dog food. This makes the 7.03 bag of dog food a better deal.
Hopefully this helps.
