State the null and alternative hypothesis

Assignment Help Basic Statistics

Reference no: EM131475910

Question - A high-school department made a change in its curriculum. One of the instructors in the department suspected that the change would result in a lowering of math skills. Students in the old program showed a mean of 70 points on a mathematics proficiency exam. Forty-two students from the new program had the scores in the dataset MATHEMATICS TEST SCORES (attached). The standard deviation of the all students over the years has been 10.34. Use a 2% level of significance.

a. Set up a hypothesis test

i. State the null and alternative hypothesis

ii. Confidence intervals of scores and the z or t intervals.

b. What are the results of the test (do the data indicate that the new program results in a lowering of math skills).

c. Do a P test. Are the two tests consistent?

d. Should the department us the new curriculum and why?

Reference no: EM131475910

Questions Cloud

Eepilogue to the american revolution : Why did Slaughter title the book this? Why does Slaughter feel the Whiskey Rebellion was the "epilogue to the American Revolution?"

Central to the human capital perspective : Central to the human capital perspective is that every employee is a productivity resource and expense item.

Define the preset values of timers and counters : The following types of information are normally found and/or stored in one of the PLC's two memory categories (user and storage).

Associated with the sunshine ethical framework : Which of the following is a question associated with the "sunshine" ethical framework?

State the null and alternative hypothesis : Set up a hypothesis test - State the null and alternative hypothesis and Confidence intervals of scores and the z or t intervals. Do a P test. Are the two tests consistent

Strategy for reducing claims and premium costs : what would you recommend as a strategy for reducing claims and premium costs?

What word and bit number are represented by given plc : Define the term byte. In a PLC-5, data file 5 is what type of file?

Set up a hypothesis test : A high-school department made a change in its curriculum. One of the instructors in the department suspected that the change would result in a lowering of math skills. Set up a hypothesis test

How much will your investment grow in five years : Your father gave you a gift of $20,000 for good behavior and you wanted to invest in the stock market. How much will your investment grow in five years?

User Account

All Pages