大师作文网或者是要求什么The cost of weddings hasskyrocketed in recent years.A
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或者是要求什么
The cost of weddings has
skyrocketed in recent years.As a result,many couples are opting to have their
weddings in the Caribbean.A Caribbean vacation resort recently advertised that
the cost of a Caribbean wedding was less than $10,000.Listed below is the
total cost (in $ thousands) for a sample of eight Caribbean weddings:
9.7
9.6
11.5
12.8
9.1
10.5
13.5
12.3
8.2
9.3
11.1
12.3
14.1
8.1
11
10.8
10.4
9
10.5
10.8
10.2
9.6
12.7
11.1
9.9
11.6
11.2
8.8
9.4
10.3
9.2
9.3
(a) (10%) At 5% level of significance,is it reasonable to conclude that the cost of a Caribbean wedding
is significantly different than $10,000 on average?
The cost of weddings has
skyrocketed in recent years.As a result,many couples are opting to have their
weddings in the Caribbean.A Caribbean vacation resort recently advertised that
the cost of a Caribbean wedding was less than $10,000.Listed below is the
total cost (in $ thousands) for a sample of eight Caribbean weddings:
9.7
9.6
11.5
12.8
9.1
10.5
13.5
12.3
8.2
9.3
11.1
12.3
14.1
8.1
11
10.8
10.4
9
10.5
10.8
10.2
9.6
12.7
11.1
9.9
11.6
11.2
8.8
9.4
10.3
9.2
9.3
(a) (10%) At 5% level of significance,is it reasonable to conclude that the cost of a Caribbean wedding
is significantly different than $10,000 on average?
It is to find out the average of S10,000 with the CI of 5%.The standard deviation of the data.
或者是要求什么The cost of weddings hasskyrocketed in recent years.A
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