and
c. What conclusions can be drawn about grade inflation over this
time period?
- Can You Please Help Me Find The Test Statistic The P Value And C What Conclusions Can Be Drawn About Grade Inflation 1 (49.51 KiB) Viewed 97 times
Can you please help me find the test statistic , the p value and c. What conclusions can be drawn about grade inflation
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Can you please help me find the test statistic , the p value and c. What conclusions can be drawn about grade inflation
Can you please help me find the test statistic , the p value
and
c. What conclusions can be drawn about grade inflation over this
time period?
1. 2 A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institution's students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for Year GPA the student body was recorded over the past 11 years, as shown to the right. Complete parts a through c. 3.07 2.86 3 2.97 4 2.88 5 2.96 6 3.07 Year GPA 7 3.07 8 2.99 9 3.21 10 3.13 11 3.16 a. Construct a scatter plot for these data using technology, Choose the correct scatter plot below. O A. OB. O c. 3.5- 3.5- 3.5- 3.54 00 o o Oo 00 00 o o O 2.5- 0 25- 2.5 0 2.5- 12 12 12 12 6 Year 6 Year 6 Year 6 Year b. Using a = 0.05, determine if the slope for the regression equation is statistically significant. Determine the null and alternative hypotheses. HO: B = 0 HB * 0 The test statistic is t= 0 (Round to two decimal places as needed.)
and
c. What conclusions can be drawn about grade inflation over this
time period?
1. 2 A university is concerned about the presence of grade inflation, which is defined as an increase in the average GPA of the institution's students over time without a comparable increase in academic standards. To investigate this phenomenon, the average GPA for Year GPA the student body was recorded over the past 11 years, as shown to the right. Complete parts a through c. 3.07 2.86 3 2.97 4 2.88 5 2.96 6 3.07 Year GPA 7 3.07 8 2.99 9 3.21 10 3.13 11 3.16 a. Construct a scatter plot for these data using technology, Choose the correct scatter plot below. O A. OB. O c. 3.5- 3.5- 3.5- 3.54 00 o o Oo 00 00 o o O 2.5- 0 25- 2.5 0 2.5- 12 12 12 12 6 Year 6 Year 6 Year 6 Year b. Using a = 0.05, determine if the slope for the regression equation is statistically significant. Determine the null and alternative hypotheses. HO: B = 0 HB * 0 The test statistic is t= 0 (Round to two decimal places as needed.)