Do students tend to improve their SAT Mathematics (SAT-M)scores the second time they take the test? A random sample of four students who took the test twice received the following scores. Assume that the change in SAT-M score (second score - first score)for the population of all students taking the test twice is Normally distributed.Suppose we do not believe that students tend to improve their SAT-M scores the second time they take the test.Based on a 90% confidence interval,we wish to test H₀: $\mu$ = 0 versus H_a: $\mu$ $\neq$ 0 at the 5% significance level.Determine which of the following statements is true. A)We cannot make a decision since the confidence interval is so wide. B)We cannot make a decision since the confidence level we used to calculate the confidence interval is 90%,and we would need a 95% confidence interval. C)We accept H₀ since the value 0 falls in the 90% confidence interval and would therefore also fall in the 95% confidence interval. D)We reject H₀ since the value 0 falls in the 90% confidence interval.

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The Answer of Do students tend to improve their SAT Mathematics (SAT-M)scores the second time they take the test? A random sample of four students who took the test twice received the following scores. Assume that the change in SAT-M score (second score - first score)for the population of all students taking the test twice is Normally distributed.Suppose we do not believe that students tend to improve their SAT-M scores the second time they take the test.Based on a 90% confidence interval,we wish to test H₀: $\mu$ = 0 versus H_a: $\mu$ $\neq$ 0 at the 5% significance level.Determine which of the following statements is true. A)We cannot make a decision since the confidence interval is so wide. B)We cannot make a decision since the confidence level we used to calculate the confidence interval is 90%,and we would need a 95% confidence interval. C)We accept H₀ since the value 0 falls in the 90% confidence interval and would therefore also fall in the 95% confidence interval. D)We reject H₀ since the value 0 falls in the 90% confidence interval.

Do Students Tend to Improve Their SAT Mathematics (SAT-M)scores the Second