Perform the test of hypothesis indicated, at 0.10 level of significance, using the data from independent samples shownH0 : u1 - u2 = 15 versus H1 : u1 - u2 < -15n1 = 30, x1 = 42, s1 = 7n2 = 12, x2 = 60, s2 = 5Please include your calculations- Test Statistic- Value of Test Statistic- What is the numerical value of the critical region?- What is the p-value?- Decision (Reject or Fail to Reject)- Conclusion

Analyze data in SPSS using a dependent samples t-test • Imagine that we are interested in the difference in heart rate pre and post doing 30 seconds of jumping jacks. How might we test this question? (basic research design) Do the 4 steps of hypothesis testing (use the SPSS output sent): Step 1: • Write null hypothesis • Write research hypothesis Step 2:• Use a two-tailed test with alpha set to  = .05** • what is the critical region? Step 3: • what is the p-value? • what is the t-statistic? Step 4: • determine whether results are statistically significant • what do you conclude in general?

6) Describe the difference between a two-sample (independent) t-test and an ANOVA (in terms of what they compare) 3) [t (47) = -8.21, p = .003] Based on the parenthetical statement given above, what is the sample size for this study?

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The average retirement age in America is 62 years old. Do small business owners retire at a different average age? The data below shows the results of a survey of small business owners who have recently retired. Assume that the distribution of the population is normal. 69, 62, 73, 55, 74, 56, 60, 65, 75, 59, 66, 57, 61, 68 What can be concluded at the the αα = 0.01 level of significance level of significance? For this study, we should use    Correct   The null and alternative hypotheses would be:       H0:H0:     Correct      Correct Correct               H1:H1:     Correct      Correct Correct           The test statistic    Correct = Incorrect (please show your answer to 3 decimal places.)   The p-value = Incorrect (Please show your answer to 4 decimal places.) The p-value is    Correct αα   Based on this, we should     Correct the null hypothesis.   Thus, the final conclusion is that ... The data suggest the populaton mean is significantly different from 62 at…

When performing a Chi-Square test, what is the critical value between the accept and reject regions for a test with 4 classes and 44 observations at the 5% level of significance?

13/14 The coefficient of determination of the expanded data set is =_%. Round to one decimal place as needed. The coefficient of determination of the expanded data set is =_%. Round to one decimal place as needed. Is the point corresponding to the 12th Car influential? Is it an outlier?

An airline company is interested in improving customer satisfaction rate from the 66% currently claimed. The company sponsored a survey of 262 customers and found that 184 customers were satisfied. What is the test statistic z? What is the p-value? Does sufficient evidence exist that the customer satisfaction rate is higher than the claim by the company at a significance level of α=0.01 (Y/N)

Identify the relevant critical values  Identify the decision about H0 based on the critical value method

The time needed to find a parking space is normally distributed with a mean of 20 minutes and a standard deviation of 5.18 minutes. 90% of the time, it takes less than how many minutes to find a parking space?