Question
In: Math
5. A researcher tested a group of 11 participants with regards to their short term memory...
5. A researcher tested a group of 11 participants with regards
to their short term memory on a test of a random string of digits.
The collected data was as follows 7, 9, 8, 10, 8, 6, 7, 8, 7, 6, 1
(M = 7, S = 2.32). Use this sample data to,
Make a point estimation.
Construct an interval estimate with a 80% confidence
interval.
Construct an interval estimate with a 95% confidence
interval.
Solutions
Expert Solution
The solution is done showing all steps with calculations and necessary formulas. A t-table is also attached for your better understanding. Hope you can understand.
t-table
milcah answered 1 year agoRelated Solutions
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THC
PLACEBO
6
4
5
2
3
4
6
8
9
1
3
5
4
4
7
3
6
5
2
7
6
4
7
3
5
6
6
5
A researcher is interested in determining if THC affects
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Population
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Sample mean=121
Population
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A researcher hypothesizes that short term memory predicts
vocabulary knowledge. A random sample of Army recruits is selected
and given the digit span (a short term memory test) and vocabulary
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digit span
vocabulary
9
6
12
7
10
5
9
10
8
8
11
9
8
12
8
11
7
11
7
9
10
9
8
10
a) What...
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term memory span. She finds:
NUMBER
OF ITEMS REMEMBERED (MEMORY SPAN)
0.0
mg 500
mg 1000
mg 1500
mg
8 7 10 4
9 6 15 5
7 9 14 2
7 8 14 4
8 8 17 3
10 6 13 8
6 12 9 7
7 9 12 9
A. State the
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B. State the null
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A researcher hypothesizes that short term memory predicts vocabulary knowledge. A random sample of Army recruits...
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digit span
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9
6
12
7
10
5
9
10
8
8
11
9
8
12
8
11
7
11
7
9
10
9
8
10
a) What...
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A researcher examined whether the time of day someone exercises affects memory retention in college courses. Participants...
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Afternoon
Evening
6
4
7
7
5
6
8
6
8
5
4
6
6
5
5
Mean = 6.40
Mean = 4.80
Mean = 6.40
s = 1.14
s =.84
s = 1.14
Assuming the researcher wants to know...
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