Question

In 2001, the mean household expenditure for energy was $1493, according to data obtained from the U.S. Energy Information Administration. An economist wanted to know whether this amount has changed significantly from its 2001 level. In a random sample of 35 households, he found the mean expenditure (in 2001 dollars) for energy during the most recent year to be $1618, with standard deviation $321.

Use Minitab Express to test the economist's hypothesis at the α = 0.05 level of significance. Report your answers to three decimal places, where applicable. (Or do it by hand)

With a P-value of **(Find P-Value)** ,
do we (**reject** or **fail to reject)**
the null hypothesis.

The given data (**does** / **does
not**) provide significant evidence that the mean household
energy expenditure is (**more than** /
**less than** / **different from**)
$1493.

Answer #1

**from above:**

**With a P-value of 0.027 , we reject the null
hypothesis.
The given data does provide significant evidence that the mean
household energy expenditure is different from 1493**

In 2001, the mean household expenditure for energy was $1493,
according to data from the U.S. Energy Information Administration.
An economist wants to test whether this amount has changed
significantly from its 2001 level. In a random sample of 35
households, he found the mean expenditure for energy during the
most recent year to be $1618, with a standard deviation $321.
Conduct a hypothesis test at 10% significance level to see whether
we have strong evidence to support the economist’s...

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How much does household weekly income affect the household weekly
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The following data
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Use the data below
to develop an estimated regression equation that could be used to
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Use Excel commands for your calculations.
FOOD
INCOME
y
x
91
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428
146
766
243
1621
312
1661
243
1292
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1808...

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A politician claims the mean household income in Indiana
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The type of household for the U.S. population and for a random
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26%
103
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29%
118
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9%
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The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
of Households in
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Married with children
26%
96
Married, no children
29%
113
Single parent
9%
32
One person
25%
97
Other (e.g., roommates, siblings)
11%
73
Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
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Observed Number
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Married, no children
29%
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Single parent
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Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
below.
Type of Household
Percent of U.S.
Households
Observed Number
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the Community
Married with children
26%
93
Married, no children
29%
127
Single parent
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One person
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Other (e.g., roommates, siblings)
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Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

The type of household for the U.S. population and for a random
sample of 411 households from a community in Montana are shown
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Percent of U.S.
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Use a 5% level of significance to test the claim that the
distribution of U.S. households fits the...

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