Question 9 (1 point) The normal distribution is defined using two parameters: u and o. Which of the following statements are TRUE? Select all that apply. Not for distribution. Copyright Dr. Sean P. Mackinnon. If found online contact mackinnon.sean@dal.ca. O The distribution in a single sample for a proportion usually has a normal distribution As u increases, the distribution shifts to the right The z-distribution is a totally different distribution than the normal distribution As o increases, the distribution becomes narrower The normal distribution has positive skewness Question 10 (1 point) Look at the table below. This table represents the first 8 observations from a sample of 100 people. Each person reported their sex, nationality, maximum level of education completed, and hours spent watching TV per week. What is the correct variable type for "Nationality"? Select the single BEST answer. What is the correct variable type for "Hours_TV_Watch"? Select the single BEST answer. Not for distribution. Copyright Dr. Sean P. Mackinnon. If found online contact mackinnon.sean@dal.ca. Sex Nationality Education Hours TV_Watch Male Canada No High School 2.0 Male Canada No High School 3.1 Female Canada Completed High School 6.8 Female USA Completed High School 2.5 Male USA Completed High School 3.7 Female Japan Completed University/College 3.0 Female Japan Completed University/College 0 Male Japan Completed University/College 8.5 ONumerical, discrete O Categorical, nominal O Likert Response Format O Categorical, ordinal O Numerical, continuousQuestion 11 (1 point) Dr. Ratmeister is testing memory in brain-damaged rats by running them through T- mazes. Their brain injury causes movement problems that makes the rats lean to the right when running. Rats have two possible choices in a T-maze: Left or Right. Normally, rats should have an equal probability of selecting left vs. right. However, Dr. Ratmeister hypothesizes that these brain damaged rats will pick the right path more often than the left path. State the null and alternative hypotheses for this example in mathematical terms. Given that Dr. Ratmeister used a one-tailed test, what is her ALTERNATIVE HYPOTHESIS (HA)? Select the BEST option from those below. Not for distribution. Copyright Dr. Sean P. Mackinnon. If found online contact mackinnon.sean@dal.ca. Alternative Hypothesis is proportionright * 0 Alternative Hypothesis is proportionright > 0 Alternative Hypothesis is proportionright .50 Alternative Hypothesis is proportionright # .50 Alternative Hypothesis is proportionright