An electronics manufacturing process has a scheduled mean completion time of 70 minutes. It is claimed that, under new management, the mean completion time, μ, is less than 70 minutes. To test this claim, a random sample of 20 completion times under new management was taken.The sample had a mean completion time of 65 minutes and a standard deviation of 10 minutes. Assume that the population of completion times under new management is normally distributed. At the 0.05 level of significance, can it be concluded that the mean completion time, μ, under new management is less than the scheduled mean? Perform a one-tailed test. Then fill in the table below.Carry your intermediate computations to at least three decimal places and round your answers as specified in the table. An electronics manufacturing process has a scheduled mean completion time of 70 minutes. It is claimed that, under new management, the mean completiontime, µ, is less than 70 minutes. To test this claim, a random sample of 20 completion times under new management was taken.The sample had a mean completion time of 65 minutes and a standard deviation of 10 minutes. Assume that the population of completion times under newmanagement is normally distributed. At the 0.05 level of significance, can it be concluded that the mean completion time, µ, under new management is lessthan the scheduled mean?Perform a one-tailed test. Then fill in the table below.Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.н, :‑The null hypothesis:H. :0The alternative hypothesis:D=0OSO(Choose one)The type of test statistic:O0The value of the test statistic:(Round to at least threedecimal places.)The p-value:(Round to at least threedecimal places.)At the 0.05 level, can it be concluded that theO YesO Nomean completion time under new management isless than the scheduled mean?Ix

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Description: An electronics manufacturing process has a scheduled mean completion time of 70 minutes. It is claimed that, under new management, the mean completion time, μ, is less than 70 minutes. To test this claim, a random sample of 20 completion times under

Null hypothesis: µ=70. Alternative hypothesis: µ<70. This is a left tailed test. Since the…

Answered: An electronics manufacturing process…

MATLAB: An Introduction with Applications

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Author:Amos Gilat

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An electronics manufacturing process has a scheduled mean completion time of

minutes. It is claimed that, under new management, the mean completion time,

, is less than

minutes. To test this claim, a random sample of

completion times under new management was taken.

The sample had a mean completion time of

minutes and a standard deviation of

minutes. Assume that the population of completion times under new management is normally distributed. At the

0.05

level of significance, can it be concluded that the mean completion time,

, under new management is less than the scheduled mean?

Perform a one-tailed test. Then fill in the table below.

Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.

An electronics manufacturing process has a scheduled mean completion time of 70 minutes. It is claimed that, under new management, the mean completion
time, µ, is less than 70 minutes. To test this claim, a random sample of 20 completion times under new management was taken.
The sample had a mean completion time of 65 minutes and a standard deviation of 10 minutes. Assume that the population of completion times under new
management is normally distributed. At the 0.05 level of significance, can it be concluded that the mean completion time, µ, under new management is less
than the scheduled mean?
Perform a one-tailed test. Then fill in the table below.
Carry your intermediate computations to at least three decimal places and round your answers as specified in the table.
н, :‑
The null hypothesis:
H. :0
The alternative hypothesis:
D=0
OSO
(Choose one)
The type of test statistic:
O<O
O>0
The value of the test statistic:
(Round to at least three
decimal places.)
The p-value:
(Round to at least three
decimal places.)
At the 0.05 level, can it be concluded that the
O Yes
O No
mean completion time under new management is
less than the scheduled mean?
Ix

Definition Definition Measure of central tendency that is the average of a given data set. The mean value is evaluated as the quotient of the sum of all observations by the sample size. The mean, in contrast to a median, is affected by extreme values. Very large or very small values can distract the mean from the center of the data. Arithmetic mean: The most common type of mean is the arithmetic mean. It is evaluated using the formula: μ = 1 N ∑ i = 1 N x i Other types of means are the geometric mean, logarithmic mean, and harmonic mean. Geometric mean: The nth root of the product of n observations from a data set is defined as the geometric mean of the set: G = x 1 x 2 ... x n n Logarithmic mean: The difference of the natural logarithms of the two numbers, divided by the difference between the numbers is the logarithmic mean of the two numbers. The logarithmic mean is used particularly in heat transfer and mass transfer. ln x 2 − ln x 1 x 2 − x 1 Harmonic mean: The inverse of the arithmetic mean of the inverses of all the numbers in a data set is the harmonic mean of the data. 1 1 x 1 + 1 x 2 + ...

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