Question

A group says that the mean daily lodging cost for a family traveling in Region 1 is the same as in Region 2. The mean daily lodging cost for

32

families traveling in Region 1 is

$126

with a population standard deviation of

$2828.

The mean daily lodging cost for

thirty two

families traveling in Region 2 is

$121

with a population standard deviation of

$2121.

At

alpha equals 0.10

is there enough evidence to reject thegroup's claim? Complete parts (a) through (e).

(a) Identify the claim and state

Upper H 0H0

and

Upper H Subscript aHa.

What is the claim?

A) the mean daily lodging cost in region 1 is greater than region 2

b) the mean daily lodging cost in region 1 is less than region 2

c) the mean daily lodging costs in region 1 and region 2 are different

or they are equal which is option d

What are Upper H 0

and

Upper H Subscript aHa?

(b) Find the critical value(s) and identify the rejection region(s).

The critical value(s) is/are

____?

What is/are the rejection region(s)?

(c) Find the standardized test statistic z for

mu 1μ1minus−mu 2μ2.

zequals=____

(Round to three decimal places as needed.)

(d) Decide whether to reject or fail to reject the null hypothesis. Choose the correct answer below.

A) fail to reject h0.

or

B) reject H o

(e) Interpret the decision in the context of the original claim.

At the ____% significance level, there is (insufficient/sufficient)? evidence to (Reject/support)? the claim that the mean

daily lodging costs in region 1 is equal to, greater than, lesser than, or different than?

Answer #1

A group says that the mean daily lodging cost for a family
traveling in Region 1 is the same as in Region 2. The mean daily
lodging cost for
3939
families traveling in Region 1 is
$141141
with a population standard deviation of
$2424.
The mean daily lodging cost for
3939
families traveling in Region 2 is
$135135
with a population standard deviation of
$2525.
At
alpha equals 0.10 commaα=0.10,
is there enough evidence to reject the group's claim? Complete...

Provided below are summary statistics for independent simple
random samples from two populations. Use the pooled t-test and the
pooled t-interval procedure to conduct the required hypothesis
test and obtain the specified confidence interval.
x overbar 1x1equals=1414,
s 1s1equals=2.42.4,
n 1n1equals=1818,
x overbar 2x2equals=1515,
s 2s2equals=2.42.4,
n 2n2equals=1818
a. Two-tailed test,
alphaαequals=0.050.05
b.
9595%
confidence interval
a. First, what are the correct hypotheses for
a two-tailed test?
A.
Upper H 0H0:
mu 1μ1equals=mu 2μ2
Upper H Subscript aHa:
mu 1μ1not...

You want to buy a microwave oven and will choose Model A if its
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$11.50 x overbar 2= $70 s2= $30 At alphaαequals=0.010.01, would
you buy Model A? Assume the samples are randomly selected and that
the samples are independent....

Math 15Assessment # 41. A travel association says that the daily
lodging cost for a family traveling in California is the same as in
Florida. The daily lodging cost for 35 families traveling in
California is $136 and the standard deviation is $25. The daily
lodging cost for 35 families traveling in Florida is $140 and the
standard deviation is $30. At α = 0.10 is there enough evidence to
reject the travel association’s claim?
Steps a through e
please...

The table to the right shows the cost per ounce (in dollars)
for a random sample of toothpastes exhibiting very good stain
removal, good stain removal, and fair stain removal. At
alphaequals0.025, can you conclude that the mean costs per ounce
are different? Perform a one-way ANOVA test by completing parts a
through d. Assume that each sample is drawn from a normal
population, that the samples are independent of each other, and
that the populations have the same variances....

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An energy company wants to choose between two regions in a state
to install energy-producing wind turbines. A researcher claims that
the wind speed in Region A is less than the wind speed in Region B.
To test the regions, the average wind speed is calculated for
6060
days in each region. The mean wind speed in Region A is
13.713.7
miles per hour. Assume the population standard deviation is
2.82.8
miles...

A magazine claims that the mean amount spent by a customer at
Burger Stop is greater than the mean amount spent by a customer at
Fry World. The results for samples of customer transactions for the
two fast food restaurants are shown below. At
alphaαequals=0.05
can you support the magazine's claim? Assume the population
variances are equal. Assume the samples are random and
independent, and the populations are normally distributed. Complete
parts (a) through (e) below.
Burger Stop
Fry World...

The table below shows the number of hours per day 11 patients
suffered from headaches before and after 7 weeks of soft tissue
therapy. At alphaαequals=0.01,
is there enough evidence to conclude that soft tissue therapy
helps to reduce the length of time patients suffer from headaches?
Assume the samples are random and dependent, and the population is
normally distributed. Complete parts (a) through (f).
Patient Daily headache hours (before)
Daily headache hours (after)
1 3.1 2.4
2 1.8 2.2...

(a) Write the claim mathematically and identify
Upper H 0H0
and
Upper H Subscript aHa.
(b) Find the critical value(s) and identify the rejection
region(s). (c) Find the standardized test statistic. (d) Decide
whether to reject or fail to reject the null hypothesis.In a sample
of
10001000
home buyers, you find that
431431
home buyers found their real estate agent through a friend.
At
alphaαequals=0.020.02,
can you reject the claim that
4040%
of home buyers find their real estate agent...

A tourist agency in Hawaii claims the mean daily cost of meals
and lodging for a family of 4 traveling in Hawaii is at most $650
with a standard deviation of $40. You work for a consumer
protection advocate and want to test this claim. In a random sample
of 45 families of 4 traveling in Hawaii, the mean daily cost of
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