Question

Assume that the weights of quarters are normally distributed with a mean of 5.70g and a standard deviation of .075g. A vending machine will only accept coins weighing between 5.25g and 5.75g. Approximate, what percentage of legal quarters will be accepted?

74.75%

90.50%

25.25%

90.88%

Answer #1

6. Assume that the weights of coins are normally distributed
with a mean of 5.67 g and a standard deviation 0.070 g. A vending
machine will only accept coins weighing between 5.48 g and 5.82 g.
What percentage of legal quarters will be rejected by the machine?
Give your answer in the percentage format (using % symbol), rounded
to two decimal places.
7. Assume that values of variable x are normally distributed,
with the mean μ = 16.2 and the...

Find the indicated probability: Assume that the weights of
candies are normally distributed with a mean of 5.67 g and a
standard deviation 0.070 g. A vending machine will only accept
candies that are weighing between 5.48 g and 5.82 g. What
percentage of candies will be rejected by the machine? Give your
answer in the percentage format (using % symbol), rounded to two
decimal places. HINT: Percentage = probability = area under the
curve; Percentage rejected = 100% –...

Vending machines can be adjusted to reject coins above and below
certain weights. The weights of legal U.S. quarters are normally
distributed with a mean of 5.67 grams and a standard deviation of
0.0700 gram
The vending machine is adjusted to reject quarters that weigh
more than 5.80 grams and less than 5.52 grams, what percentage of
legal quarters will be accepted by the machine?

After 1964, quarters were manufactured so that the weights had a
mean of 5.67 g and a standard deviation of 0.06 g. Some vending
machines are designed so that you can adjust the weights of
quarters that are accepted. If many counterfeit coins are found,
you can narrow the range of acceptable weights with the effect that
most counterfeit coins are rejected along with some legitimate
quarters. If you adjust vending machines to accept weights between
5.64 g and 5.70...

suppose certain coins have weights that are normally distributed
with a mean of 5.191g and a standard deviation of 0.068 g. A
vending machine is configured to accept those coins with weights
between 5.121 g and 5.261 g. If 260 different coins are inserted
into the vending machine, what is the expected number rejected
coins.

Suppose certain coins have weights that are normally distributed
with a mean of 5.854 g and a standard deviation of 0.071 g. A
vending machine is configured to accept those coins with weights
between 5.744 g and 5.964 g.
a. If 280 different coins are inserted into the
vending machine, what is the expected number of rejected coins?

Suppose certain coins have weights that are normally distributed
with a mean of 5.938 g and a standard deviation of 0.078 g. A
vending machine is configured to accept those coins with weights
between 5.848 g and 6.028 g.
If 260 different coins are inserted into the vending machine,
what is the expected number of rejected coins?

Suppose certain coins have weights that are normally distributed
with a mean of 5.629 g and a standard deviation of 0.056 g. A
vending machine is configured to accept those coins with weights
between 5.559 g and 5.699 g.
a. If 280 different coins are inserted into the vending
machine, what is the expected number of rejected coins?

Suppose certain coins have weights that are normally distributed
with a mean of 5.159 g and a standard deviation of 0.079 g. A
vending machine is configured to accept those coins with weights
between 5.029 g and 5.289 g. If 270 different coins are inserted
into the vending machine, what is the probability that the mean
falls between the limits of 5.029 g and 5.289 g?

Suppose certain coins have weights that are normally distributed
with a mean of 5.395 g and a standard deviation of 0.058g.A vending
machine is configured to accept those coins with weights between
5.325g and 5.465 g
If 290 different coins are inserted into the vending machine
,what is the expected number of rejected coins?!
The expected number of rejected coins is...(round to nearest
integer)

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 3 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 9 minutes ago

asked 21 minutes ago

asked 29 minutes ago

asked 41 minutes ago

asked 45 minutes ago

asked 48 minutes ago

asked 50 minutes ago

asked 56 minutes ago

asked 59 minutes ago