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7. True or False: In hypothesis testing, we look for evidence in our sample data that counters the null hypothesis. 8. The average American man weighs 197.9 pounds; this can be treated as the population mean. I want to assess whether or not American men at a southwestern college are significantly different from the average weight. Test this hypothesis at an alpha of 0.05. a. What is the null hypothesis? \(a. \mu = 197.9\) \(b. \mu \neq 197.9\) b. What is the alternative hypothesis? \(a. \mu = 197.9\) \(b. \mu \neq 197.9\) Data: 198, 188, 208, 205, 210, 198, 189, 183, 190, 195, 176, 189, 174, 155, 180 c. What are your degrees of freedom? d. What is the critical t value (t table)? e. What is the obtained t value? f. What can you conclude? a. Reject the null hypothesis. American men at a southwestern college are significantly different than 197.9 pounds. b. Fail to reject the null hypothesis. American men at a southwestern college are not significantly different than 197.9 pounds. g. Calculate the estimated d (Cohen's d) for this problem h. Provide your Jamovi output showing: test statistic, degrees of freedom, p value, mean difference, standard error, and estimated Cohen's d

          7. True or False: In hypothesis testing, we look for evidence in our sample data that counters the null hypothesis.
8. The average American man weighs 197.9 pounds; this can be treated as the population mean. I want to assess whether or not American men at a southwestern college are significantly different from the average weight. Test this hypothesis at an alpha of 0.05.
a. What is the null hypothesis?
\(a. \mu = 197.9\)
\(b. \mu \neq 197.9\)
b. What is the alternative hypothesis?
\(a. \mu = 197.9\)
\(b. \mu \neq 197.9\)
Data: 198, 188, 208, 205, 210, 198, 189, 183, 190, 195, 176, 189, 174, 155, 180
c. What are your degrees of freedom?
d. What is the critical t value (t table)?
e. What is the obtained t value?
f. What can you conclude?
a. Reject the null hypothesis. American men at a southwestern college are significantly different than 197.9 pounds.
b. Fail to reject the null hypothesis. American men at a southwestern college are not significantly different than 197.9 pounds.
g. Calculate the estimated d (Cohen's d) for this problem
h. Provide your Jamovi output showing:
test statistic, degrees of freedom, p value, mean difference, standard error, and estimated Cohen's d

7. True or False: In hypothesis testing, we look for evidence in our sample data that counters the null hypothesis.
8. The average American man weighs 197.9 pounds; this can be treated as the population mean. I want to assess whether or not American men at a southwestern college are significantly different from the average weight. Test this hypothesis at an alpha of 0.05.
a. What is the null hypothesis?
a. μ = 197.9
b. μ≠ 197.9
b. What is the alternative hypothesis?
a. μ = 197.9
b. μ≠ 197.9
Data: 198, 188, 208, 205, 210, 198, 189, 183, 190, 195, 176, 189, 174, 155, 180
c. What are your degrees of freedom?
d. What is the critical t value (t table)?
e. What is the obtained t value?
f. What can you conclude?
a. Reject the null hypothesis. American men at a southwestern college are significantly different than 197.9 pounds.
b. Fail to reject the null hypothesis. American men at a southwestern college are not significantly different than 197.9 pounds.
g. Calculate the estimated d (Cohen's d) for this problem
h. Provide your Jamovi output showing:
test statistic, degrees of freedom, p value, mean difference, standard error, and estimated Cohen's d

Added by Jose Ignacio S.

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