(Round all intermediate calculations to at least 4 decimal places.) In order to
ID: 3364395 • Letter: #
Question
(Round all intermediate calculations to at least 4 decimal places.)
In order to conduct a hypothesis test for the population mean, a random sample of 14 observations is drawn from a normally distributed population. The resulting sample mean and sample standard deviation are calculated as 7.7 and 2.0, respectively. Use Table 2.
Use the p-value approach to conduct the following tests at = 0.10.
a-1.
Calculate the value of the test statistic. (Round your answer to 2 decimal places.)
a-2.
a-3.
b-1.
Calculate the value of the test statistic. (Round your answer to 2 decimal places.)
b-2.
b-3.
In order to conduct a hypothesis test for the population mean, a random sample of 14 observations is drawn from a normally distributed population. The resulting sample mean and sample standard deviation are calculated as 7.7 and 2.0, respectively. Use Table 2.
Explanation / Answer
The statistical software output for this problem is:
One sample T summary hypothesis test:
: Mean of population
H0 : = 6.6
HA : > 6.6
Hypothesis test results:
Hence,
a - 1) Test statistic = 2.06
a - 2) 0.025 < p-value < 0.050
a - 3) Reject H0 since the p-value is less than .
b - 1) Test statistic = 2.06
b - 2) 0.050 < p-value < 0.100
b - 3) Reject H0 since the p-value is less than .
Mean Sample Mean Std. Err. DF T-Stat P-value 7.7 0.53452248 13 2.0579116 0.0301Related Questions
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