Question

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.

Answer #1

Solution :

This is the left tailed test,

The null and alternative hypothesis is ,

H_{0} :
= 443

H_{a} :
< 443

Test statistic = t =

= ( - ) / s / n

= (434 - 443 ) / 17 / 15

Test statistic = t = -2.050

degrees of freedom = n - 1 = 15 - 1 = 14

= 0.1

P(t > t) = 0.1

= 1 - P(t < t) = 0.1

= P(t < t) = 1 - 0.1

= P(t < t) = 0.9

= P(t < 1.345 ) = 0.9

t > 1.345

Fail to reject H_{0} , because critical value > test
statistic

A manufacturer of potato chips would like to know whether its
bag filling machine works correctly at the 445445 gram setting. It
is believed that the machine is underfilling the bags. A 1313 bag
sample had a mean of 444444 grams with a standard deviation of
1212. A level of significance of 0.010.01 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.

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 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?

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 potato chips would like to know whether its
bag filling machine works correctly at the 402 gram setting. It is
believed that the machine is underfilling or overfilling the bags.
A 13 bag sample had a mean of 409 grams with a standard deviation
of 13 Assume the population is normally distributed. A level of
significance of 0.1 will be used. Specify the type of hypothesis
test.

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 chocolate chips would like to know whether its
bag filling machine works correctly at the 425 gram setting. It is
believed that the machine is underfilling the bags. A 23 bag sample
had a mean of 417 grams with a standard deviation of 28. A level of
significance of 0.01 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.

A manufacturer of chocolate chips would like to know whether its
bag filling machine works correctly at the 406 gram setting. It is
believed that the machine is underfilling the bags. A 24 bag sample
had a mean of 398 grams with a standard deviation of 28. A level of
significance of 0.05 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.

A manufacturer of banana chips would like to know whether its
bag filling machine works correctly at the 424 gram setting. It is
believed that the machine is underfilling the bags. A 24 bag sample
had a mean of 418 grams with a standard deviation of 20. A level of
significance of 0.01 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.

A manufacturer of chocolate chips would like to know whether its
bag filling machine works correctly at the 419 gram setting. It is
believed that the machine is underfilling the bags. A 26 bag sample
had a mean of 412 grams with a standard deviation of 15. A level of
significance of 0.05 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. Answer

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 18 minutes ago

asked 23 minutes ago

asked 28 minutes ago

asked 31 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 3 hours ago

asked 3 hours ago

asked 3 hours ago