Association Categorical and Quantitative - Solutions
1: Open the Class Survey (Minitab File) found in the Data Sets folder. Use Stat>Tables>CrossTabulation and Chi-Square to answer the following quest
Hypothesis Testing Comparing Two Groups - Solutions
1 For each of the following research questions does the situation or research question involve independent samples or paired data? a. Twenty-five pe
Practice Second Midterm
October 16, 2014
There are 22 questions below. There are actually two practice exams below; the odd numbered
questions comprise one exam and the even numbered
questions compris
Practice Midterm Exam
and Solutions
Statistics 371
Fall 2011
Professor Wardrop
(c) A female and not a veteran.
3. The 1,000 students at a small state university are classied according to two features.
Solutions to Practice Final,
Statistics 371, Spring, 2014.
1.
2.
(a) Use these data to obtain Gossets 95%
condence interval estimate of the mean
of the unknown pdf.
Answer: The number of degrees of fr
Probability Distributions - Solutions
1 In each part, indicate, (1) whether the variable is discrete or continuous AND (2) whether it is
binomial or not AND (3) if it is binomial, give values for n an
Confidence Intervals Proportion and One Mean - Solutions
1 The term sampling frame refers to the group that actually had a chance to get into the sample. Ideally, this is the same as the population of
Multiple Linear Regression - Solutions
1 Relationship Between Eighth Grade IQ, Eighth Grade Abstract Reasoning and Ninth
grade Math Score For a statistics class project, students examined the relation
Sampling Distributions Solutions
1 Suppose the amount students at PSU spent on textbooks this semester is a normal random
variable with mean = $360 and standard deviation = $90.
a. Use the empirical r