You will conduct a one-sample t-test for Writing for the null hypothesis in the population H0: μ = 50, with α = .05, two tailed. Answer the following questions (report to two decimal places) a. Obtain the t-statistic, by hand computation. b. Obtain the critical value from the t table. c. Obtain the 95% confidence interval around , by hand computation.
You will conduct a one-sample t-test for Writing for the null hypothesis in the population H0: μ = 50, with α = .05, two tailed. Answer the following questions (report to two decimal places)
a. Obtain the t-statistic, by hand computation.
b. Obtain the critical value from the t table.
c. Obtain the 95% confidence interval around , by hand computation.
d. Interpret the confidence interval, according to its definition. (You are not asked to make a decision on H0 here yet.)
e. Obtain the p-value from SPSS output.
f. Interpret the p-value, according to its definition. (You are not asked to make a decision on H0 here yet.)
g. Based on each of the three evidences: t-statistic, CI, and p-value, would you reject H0? Why?
h. Based on each of the three evidences: t-statistic, CI, and p-value , what can you conclude about mean Writing scores for the population represented by this sample?
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