Question

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 434 gram setting. It is believed that the machine is underfilling the bags. A 41 bag sample had a mean of 433 grams. Assume the population standard deviation is known to be 23. Is there sufficient evidence at the 0.05 level that the bags are underfilled?

Answer #1

Hypotheses:

Ho: = 434

Ha: < 434 [Left Tailed Test]

Critical value at 0.05 significance level = -1.645

Decision rule: Reject Ho if z < -1.645

Test statistic

z = (433 - 434)/(23/sqrt(41))

z = -0.28

Since this value is not less than -1.645, it doesn't fall in rejection region and hence, we fail to reject Ho. Therefore,

We do not have sufficient evidence to conclude that the bags are underfilled.

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 442.0 gram setting. it
is believed that the machine is underfilling the bags. a 42 bag
sample had a mean of 441.0 grams. a level of significance of 0.05
will be used. is there sufficient evidence to support the claim
that the bags are underfilled? assume the standard deviation is
known to be 25.0.
What is the conclusion?
There is or is...

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 414
gram setting. It is believed that the machine is underfilling
the bags. A 16 bag sample had a mean of 405 grams with a variance
of 625. A level of significance of 0.025 will be used. Assume the
population distribution is approximately normal. Is there
sufficient evidence to support the claim that the bags are
underfilled?

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 443 gram setting. It is
believed that the machine is underfilling the bags. A 44 bag sample
had a mean of 437 grams. Assume the population standard deviation
is known to be 23. A level of significance of 0.05 will be used.
State the null and alternative hypotheses.

A manufacturer of banana chips would like to know whether its
bag filling machine works correctly at the 402.0 gram setting. It
is believed that the machine is underfilling the bags. A 45 bag
sample had a mean of 392.0 grams. A level of significance of 0.1
will be used. Is there sufficient evidence to support the claim
that the bags are underfilled? Assume the standard deviation is
known to be 29.0.
What is the conclusion?
a) There is not...

A manufacturer of banana chips would like to know whether its
bag filling machine works correctly at the 436.0 gram setting. It
is believed that the machine is underfilling the bags. A 40 bag
sample had a mean of 430.0 grams. A level of significance of 0.02
will be used. Is there sufficient evidence to support the claim
that the bags are underfilled? Assume the standard deviation is
known to be 23.023.0.

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 424.0 gram setting. It
is believed that the machine is underfilling the bags. A 39 bag
sample had a mean of 419.0 grams. A level of significance of 0.05
will be used. Determine the decision rule. Assume the standard
deviation is known to be 13.0. Enter the decision rule.

A manufacturer of chocolate chips would like to know whether its
bag filling machine works correctly at the 401 gram setting. It is
believed that the machine is underfilling the bags. A 10 bag sample
had a mean of 393 grams with a standard deviation of 10. Assume the
population is normally distributed. Is there sufficient evidence at
the 0.02 level that the bags are underfilled?
ANSWER CHOICES:
A) There is not sufficient evidence to support the claim that
the...

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 444 gram setting. It is
believed that the machine is overfilling the bags. A 35 bag sample
had a mean of 445 grams. Assume the population standard deviation
is known to be 12. Is there sufficient evidence at the 0.05 level
that the bags are overfilled? Step 1 of 6: State the null and
alternative hypotheses.

A manufacturer of chocolate chips would like to know whether its
bag filling machine works correctly at the 418 gram setting. It is
believed that the machine is underfilling the bags. A 9 bag sample
had a mean of 411 grams with a standard deviation of 20 . A level
of significance of 0.025 will be used. Assume the population
distribution is approximately normal. Is there sufficient evidence
to support the claim that the bags are underfilled?

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 443 gram setting. It is
believed that the machine is underfilling the bags. A 15 bag sample
had a mean of 434 grams with a standard deviation of 17. A level of
significance of 0.1 will be used. Assume the population
distribution is approximately normal. Determine the decision rule
for rejecting the null hypothesis. Round your answer to three
decimal places.

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 15 minutes ago

asked 51 minutes ago

asked 54 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago