STAT 1060 Study Guide - Final Guide: Null Hypothesis, Null Model, Sampling Distribution

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brownduck408

9 Apr 2015

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These practice questions are divided into two, related, sets of questions. P and q: p0 and q. If p0 = 0. 05, find the sd of p: 0. 112, 0. 049, 1. 0, 20. A sample size of 50 yields 35 successes. Of the 500 interviewed, 259 said that marijuana should be legal for recreational use. The analysts stated that the margin of error was 4 percentage points with 95% confidence. Questions 14- 17 below are based on this study: the us national survey on. Drug use and health reports that 4. 8% of persons 12 and older regularly use prescription pain relievers for non- medical purposes. What is the p- value in that case: same; this will not change the p- value, 0. 0461, 0. 0922, 0. 01. The ntsb claims that young people aged 18- 24 have an accident rate of 12% per year. A recent study found 134 crashes among 1000 young drivers, aged 18- 24.

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Module 2 Minitab Assignment

Instructions:
Below you will find questions and a sample dataset. Please use the provided dataset to complete the tasks and to answer the questions.

As reported by the U.S. Census Bureau in Current Population Reports, the percentage of adults in each state and the District of Columbia who have completed high school is provided below.
Find the mean, median, and mode for this data set. Be aware that the mode does not always exist.
Find the range and standard deviation of this data set.
Write a sentence interpreting the mean and standard deviation.
Write a sentence interpreting the median.
Dataset:
State Percent - Dataset
Alabama 95
Alaska 89
Arizona 95
California 84
Delaware 80
Georgia 81
Illinois 88
Kansas 83
Louisiana 85
Massachusetts 85
New Mexico 91
New York 93
North Carolina 88
Oklahoma 85
Texas 88
Utah 91
Vermont 86
Washington 80
Wisconsin 81
Wyoming 95

(continued on next page)
Based on the following data,
Determine and interpret the first, second, and third quartiles.
Determine and interpret the interquartile range.
Construct a box-plot and describe the shape of the distribution.
Identify any outliers, if any.
Dataset:
96
59
55
111
76
91
60
57
84
123
56
89
61
72
89
72
81
88
75
79

(continued on next page)
This is a set of data from a sample of n = 11 items:
Produce a scatterplot of the data.
What does the plot suggest about the relationship between the variables?
Find and interpret the correlation coefficient.
Find and interpret the coefficient of determination.
Predict the value of y when x = 65. How much faith do you have in this prediction? Explain.
Dataset:
x y
46.1 150.8
47.6 150.2
45.5 141.3
43.1 167.4
44.5 166.7
36.9 121.7
47.4 143.6
44.8 186.1
41.3 166.2
33.5 140.4
34.4 132.9

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STAT 1060 Study Guide - Final Guide: Null Hypothesis, Null Model, Sampling Distribution

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