Computing p-value and test

Assignment Help Basic Statistics

Reference no: EM13112607

Question 1:

The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude, and study habits of college students. Scores range from 0 to 200 and follow (approximately) a normal distribution with mean 115 and standard deviation 25. You suspect that incoming freshmen have a mean u which is different from 115 because they are often excited yet anxious about entering college. To test your suspicion, you test the hypothesis

H0: u = 115
Ha: u not equal 115

You give the SSHA to 25 students who are incoming freshmen and find their mean score is 116.2. Assuming that the scores of all incoming freshmen are approximately normal with the same standard deviation as the scores of all college students, the P-value of your test would be?

Question 2:

The level of calcium in the blood of health young adults follows a normal distribution with mean u = 10 milligrams per deciliter and standard deviation 0.4. A clinic measures the blood calcium of 25 health pregnant young women at their first visit for prenatal care. The mean of these 25 measurements is xbar = 9.6. Is this evidence that the mean calcium level in the population from which these women come is less than 10? To answer this, test the hypothesis:

H0: u = 10
Ha: u < 10

The P-Value of this test would be?

Reference no: EM13112607

Questions Cloud

Illustrate what are the potential costs and risk : Explain how is this different from the strategies of both Goizueta and Daft? Illustrate what are the benefits? Illustrate what are the potential costs and risk?

Precipitate of magnesium flouride : Will a precipitate of magnesium flouride form when 200.0 milliliter of 1.9x10^-3mol/Litre MgClsubnumber2 solution is added to 300.0 milliliter of 1.4x10^-2mol/Litre NaFsolution?

Explain double-blind and placebo-controlled : "Factorial" means that the treatments are formed from more than one factor. What are the factors? What do "double-blind" and "placebo-controlled" mean?

Two sample hypothesis test difference of means : Is there a statistically significant difference between the bowling averages of male nurses and those of businessmen, if last year's league play produced the following data

Computing p-value and test : The Survey of Study Habits and Attitudes (SSHA) is a psychological test that measures the motivation, attitude, and study habits of college students.

Express how these risks have been measured-quantified : Express known risks that have the potential to affect the outcome of project and Express how these risks have been measured/quantified and the steps that are planned/in place to avoid, counteract or mitigate these known risks.

Find possible ordered choices of three out of six candidates : The third will be made an offer only if the committee should reject both the first and the second. How many possible ordered choices of three out of six candidates are there?

Discuss the henry george idea for a single tax : Discuss the Henry George idea for a single tax on real estate and why did the California State Lottery extend the payoff period from 20 years to 26 years?

Determining the freezing point : A soluation of HO-CH2-CH2-OH is prepared by dissolving 651g of ethylene gylcol in 1.50kg of water. Determine the freezing point of the soluaiton and the vapor pressure of water above the solution 25.0 degrees C.

User Account

All Pages