Question
In: Statistics and Probability
The management of a Health Club claims that its members lose an average of 10 pounds...
The management of a Health Club claims that its members lose an average of 10 pounds or more within the first month after joining the club. A consumer agency that wanted to check this claim took a random sample of 36 members of this health club and found that they lost an average of 9.2 pounds within the first month of membership with a standard deviation of 2.4 pounds. At the 10% significant level, can the consumer agency conclude that the Club is telling the truth?
Solutions
orchestra answered 1 year agoRelated Solutions
A new weight-loss program claims that participants will lose an average of more than 10 pounds...
A new weight-loss program claims that participants will lose an
average of more than 10 pounds after completing it. The
accompanying data table shows the weights of eight individuals
before and after the program. Complete parts (a) through (e)
below.
Person
Before
After
1
226
203
2
213
195
3
206
195
4
186
173
5
204
195
6
199
181
7
243
232
8
191
193
. a. Perform a hypothesis test using alphaαequals=0.10 to
determine if the average...
The owner of a health club franchise believes that the average age of the club's members...
The owner of a health club franchise believes that the average
age of the club's members is under
40
years. To test this, a random sample of
30
members was selected. The accompanying sample data are the ages
of the sampled individuals.
24 45 65 21 40 19 34 57 40 50 21 20 46 47 36 26 63 67 18 21 60
28 36 45 23 52 61 21 35 36
Click the icon to view the data table....
The Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose...
The Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (-) in
seconds per week.
-0.14
-0.64
-0.86
-0.85
0.16
-0.34
0.23
0.35
-0.33
-0.17
-0.89
-0.73
-0.36
-0.13
-0.27
-0.72
-0.20
0.36
H0: μ = 0
H1: μ ≠ 0
Is it reasonable to conclude that the mean gain or loss in time
for the watches is...
The Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose...
The Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (-) in
seconds per week.
-0.41
-0.70
-0.30
-0.11
0.34
-0.62
0.46
0.73
-0.30
-0.55
-0.56
-0.72
-0.14
-0.21
-0.23
-0.76
-0.67
0.22
H0: μ = 0
H1: μ ≠ 0
Is it reasonable to conclude that the mean gain or loss in time
for the watches is...
The Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose...
The Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (-) in
seconds per week.
-0.27
-0.40
-0.16
-0.78
0.58
-0.45
0.58
0.40
-0.64
-0.82
-0.40
-0.73
-0.54
-0.17
-0.69
-0.28
-0.58
0.36
H0: μ = 0
H1: μ ≠ 0
Is it reasonable to conclude that the mean gain or loss in time
for the watches is...
You are to develop a program of exercise and diet to lose 10 pounds in the...
You are to develop a program of exercise and diet to lose 10
pounds in the course of 5 weeks based on your current body weight.
If you don't want to reveal your weight make one up. Start with
your current calorie need per day. Include calories for daily
exercise and amount of calories you need to restrict per
day.
Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time...
Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (−) in
seconds per week.
−0.30
−0.27
−0.34
−0.25
+0.31
−0.20
+0.36
+0.24
−0.19
−0.40
−0.49
−0.55
−0.55
−0.67
−0.03
−0.23
−0.54
+0.08
State the null hypothesis and the alternate hypothesis.
State the decision rule for 0.02 significance level.
(Negative amounts should be indicated by a minus sign.
Round...
Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time...
Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (−) in
seconds per week.
Click here for the Excel Data File
−0.43
−0.22
−0.42
−0.37
+0.27
−0.23
+0.32
+0.54
−0.19
−0.29
−0.34
−0.55
−0.44
−0.56
−0.05
−0.19
−0.24
+0.08
State the null hypothesis and the alternate hypothesis.
State the decision rule for 0.01 significance level.
(Negative amounts should...
Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time...
Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (−) in
seconds per week. Picture Click here for the Excel Data File −0.16
−0.15 −0.20 −0.17 +0.26 −0.19 +0.30 +0.43 −0.10 −0.31 −0.48 −0.44
−0.51 −0.67 −0.05 −0.24 −0.51 +0.05
A. State the null hypothesis and the alternate hypothesis.
H0= (mean symbol) =
H1= (mean symbol) =
B....
Watch Corporation of Switzerland claims that its watches on average will neither gain nor lose time...
Watch Corporation of Switzerland claims that its watches on
average will neither gain nor lose time during a week. A sample of
18 watches provided the following gains (+) or losses (–) in
seconds per week. Picture Click here for the Excel Data File –0.42
–0.17 –0.11 –0.28 +0.33 –0.25 +0.34 +0.25 –0.08 –0.32 –0.54 –0.44
–0.45 –0.64 –0.04 –0.26 –0.44 +0.09 a-1. Is it reasonable to
conclude that the mean gain or loss in time for the watches is...
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