Question

It is generally accepted that patients grow anxious when a
person with a white coat and stethoscope walks into an examining
room; i.e., patients have white coat hypertension. A family
practitioner is curious about this. To test this, the practitioner
has colleagues from the practice randomly visit patients in a white
coat or non-white sport coat, and measure their blood pressure.
What can the practitioner conclude with an α of 0.01? Below are the
systolic blood pressures of the patients.

white | non-white |
---|---|

117 116 111 125 119 121 113 118 121 |
103 98 118 117 102 103 113 112 105 |

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

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

**b)**

Condition 1:

---Select--- examining room blood pressure white coat hypertension
white coat non-white coat

Condition 2:

---Select--- examining room blood pressure white coat hypertension
white coat non-white coat

**c)** Compute the appropriate test statistic(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.

The systolic blood pressure for patients that where visited by a practitioner with a white coat was significantly higher from patients that were visited by a practitioner in a non-white sport coat.

The systolic blood pressure for patients that where visited by a practitioner with a white coat was significantly lower from patients that were visited by a practitioner in a non-white sport coat.

The systolic blood pressure for patients that where visited by a practitioner with a white coat did not significantly differ from patients that were visited by a practitioner in a non-white sport coat.

Answer #1

a) The appropriate test statistic is - Independent-Samples t-test

b) Condition 1 - white coat

Condition 2 - non-white coat

c)

d) effect size , large effect

e) Conclusion - The systolic blood pressure for patients that where visited by a practitioner with a white coat was significantly higher from patients that were visited by a practitioner in a non-white sport coat.

Application Exercise:
A physician hypothesizes that males have higher systolic blood
pressure than females. The physician obtains a sample of patients
and measures their blood pressures during their regular check-up.
Below is the systolic blood pressure for the sample. What can the
physician conclude with α = 0.01?
male
female
106
119
98
105
100
132
109
113
98
105
137
115
119
115
127
122
131
124
111
136
a) What is the appropriate test statistic?
---Select--- na z-test...

A doctor hypothesizes that females have higher systolic blood
pressure than males. The doctor obtains the blood pressure from a
sample of patients during their annual check-up. Below is the
systolic blood pressure for the sample. What can be concluded with
α = 0.05?
male
female
106
119
98
105
100
132
109
113
98
105
137
105
119
115
127
122
131
124
111
136
a) What is the appropriate test statistic?
---Select--- na z-test One-Sample t-test Independent-Samples t-test...

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