Question

Regents are certain about the ineffectiveness of the Orange
Grove Preschool reading program. The average reading comprehension
score is 25 for children of comparative age. The data below are
reading comprehension scores from a sample of children from Orange
Grove Preschool. Scores range from 0 - 40 with higher scores
indicating better reading comprehension. What can be concluded with
α = 0.01?

id |
reading |

35 36 37 38 39 40 41 42 43 44 45 10 11 12 13 14 15 16 17 18 |
27 33 38 17 19 27 29 18 21 35 18 28 23 22 24 20 35 24 17 16 |

**a)** What is the appropriate test statistic?

---Select--- na z-test One-Sample t-test Independent-Samples t-test
Related-Samples t-test

**b)**

Population:

---Select--- Orange Grove Preschool children of comparative age
reading Regents reading comprehension scores

Sample:

---Select--- Orange Grove Preschool children of comparative age
reading Regents reading comprehension scores

**c)** Input the appropriate value(s) to make a
decision about *H*_{0}.

(Hint: Make sure to write down the null and alternative hypotheses
to help solve the problem.)

*p*-value = ; Decision: ---Select---
Reject H0 Fail to reject H0

**d)** Using the **SPSS** results,
compute the corresponding effect size(s) and indicate
magnitude(s).

If not appropriate, input and/or select "na" below.

*d* = ; ---Select--- na trivial
effect small effect medium effect large effect

*r*^{2} = ; ---Select--- na
trivial effect small effect medium effect large effect

**e)** Make an interpretation based on the
results.

Orange Grove Preschool has a significantly effective reading program.Orange Grove Preschool has a significantly ineffective reading program. Orange Grove Preschool reading program does not have a significant effect.

Answer #1

**a)** What is the appropriate test
statistic?

One-Sample t-test

**b)**

Population:

reading comprehension scores

Sample:

Orange Grove Preschool children of comparative

**c)** Input the appropriate value(s) to make a
decision about *H*_{0}.

H_{0}: µ = 25

H_{a}: µ > 25

*p*-value = 0.6159; Decision: Fail to reject H0

**d)** Using the **SPSS** results,
compute the corresponding effect size(s) and indicate
magnitude(s).

If not appropriate, input and/or select "na" below.

*d* = ; large effect

*r*^{2} = ; small effect

**e)** Make an interpretation based on the
results.

Orange Grove Preschool reading program does not have a significant effect.

Administrators want to know the effectiveness of the Orange
Grove Elementary reading program. The average reading comprehension
score is 22 for children of comparative age. The data below are
reading comprehension scores from a sample of children from Orange
Grove Elementary. Scores range from 0 - 40 with higher scores
indicating better reading comprehension. What can be concluded with
α = 0.05?
id
reading
35
36
37
38
39
40
41
42
43
44
45
10
11
12
13
14...

Administrators are sure about the ineffectiveness of the Apple
Orchard Preschool reading program. The average reading
comprehension score is 20 for children of comparative age. The data
below are reading comprehension scores from a sample of children
from Apple Orchard Preschool. Scores range from 0 - 40 with higher
scores indicating better reading comprehension. What can be
concluded with α = 0.05?
id
reading
35
36
37
38
39
40
41
42
43
44
45
10
11
12
13
14...

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A psychologist is examining the educational advantages of a
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Preschool
No Preschool
12
11
20
14
15
18
18
8
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13
14
16
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How does gender and occupational prestige affect credibility?
Graduate students in a public health program are asked to rate the
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