b) In a study of all residents from City A, sixty Covid-19 cases have been detected. Among these confirmed cases, most of them have the symptoms of fever. The following temperatures (°C) of a resident were collected within fourteen days of self-quarantine. 36.7 37.5 36.8 38.1 36.8 38.6 38.4 37.9 35.8 36.6 38.3 37.1 37.2 36.5 With the use of t-test to perform the hypothesis testing when variance of population is unknown at the 99% significance level, do the data provide sufficient evidence to conclude that the average temperature of all residents from City A is more than 37.1 °C? Step 1: Hypothesis Statement Null Hypothesis Ho : u Alternative Hypothesis H1 : µ °C Step 2: Test Statistic n = 14 x = 37.0°C S = [3 d.p.] t-test = [3 d.p.] Step 3: Significance Level @ Level of Confidence critical value of t = [3 d.p.] Step 4: Conclusion / Decision Rule Reject or fail to recject HO

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b) In a study of all residents from City A,
sixty Covid-19 cases have been detected.
Among these confirmed cases,
most of them have the symptoms of fever.
The following temperatures (°C) of a resident were collected
within fourteen days of self-quarantine.
36.7
37.5
36.8
38.1
36.8
38.6 38.4
37.9 35.8 36.6
38.3
37.1
37.2 36.5
With the use of t-test to perform the hypothesis testing
when variance of population is unknown at the 99% significance level,
do the data provide sufficient evidence to conclude that
the average temperature of all residents from City A is more than 37.1 °C?
Step 1: Hypothesis Statement
Null Hypothesis Ho : l
°C
Alternative Hypothesis H1 : u
°C
Step 2: Test Statistic
n = 14
%3D
x = 37.0°C
S =
[3 d.p.]
t-test =
[3 d.p.]
Step 3: Significance Level @ Level of Confidence
critical value of t =
[3 d.p.]
Step 4: Conclusion / Decision Rule
Reject or fail to recject HO
Transcribed Image Text:b) In a study of all residents from City A, sixty Covid-19 cases have been detected. Among these confirmed cases, most of them have the symptoms of fever. The following temperatures (°C) of a resident were collected within fourteen days of self-quarantine. 36.7 37.5 36.8 38.1 36.8 38.6 38.4 37.9 35.8 36.6 38.3 37.1 37.2 36.5 With the use of t-test to perform the hypothesis testing when variance of population is unknown at the 99% significance level, do the data provide sufficient evidence to conclude that the average temperature of all residents from City A is more than 37.1 °C? Step 1: Hypothesis Statement Null Hypothesis Ho : l °C Alternative Hypothesis H1 : u °C Step 2: Test Statistic n = 14 %3D x = 37.0°C S = [3 d.p.] t-test = [3 d.p.] Step 3: Significance Level @ Level of Confidence critical value of t = [3 d.p.] Step 4: Conclusion / Decision Rule Reject or fail to recject HO
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