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Exam (elaborations)

MATH110 Introduction to Statistics – Portage Learning (Exam 6 Study Guide)

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Master key statistical concepts to ace your Module 6 Exam with confidence! This targeted study guide covers all essential topics from Portage Learning’s MATH110 Module 6, including hypothesis testing, confidence intervals, and regression analysis. What’s Included? 1. Core Exam Topics Hypothesis Testing Null vs. alternative hypotheses (H₀ vs. H₁) p-values and significance levels (α = 0.05) Type I & Type II errors Confidence Intervals Mean & proportion calculations Margin of error (MOE) and sample size Regression & Correlation Linear regression (slope, intercept, R²) Pearson’s r (strength/direction of correlation) Probability Distributions Normal distribution (68-95-99.7 rule) Binomial distribution 2. Practice Problems & Solutions Step-by-step solutions for: Z-test/t-test calculations Chi-square goodness-of-fit tests Confidence interval word problems Portage-style exam questions (multiple-choice, short answer) 3. Quick-Review Tools Formula Cheat Sheet: Test statistics (z, t, χ²) Confidence interval formulas Flowcharts: When to use z-test vs. t-test Hypothesis testing steps

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Institution
Math110
Course
Math110

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Uploaded on
July 31, 2025
Number of pages
18
Written in
2024/2025
Type
Exam (elaborations)
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M6: Exam - Requires Respondus
LockDown Browser + Webcam
Due No due date Points 50 Questions 5
Time Limit 90 Minutes
Requires Respondus LockDown Browser


Instructions
You may only have the following items when taking an exam: computer, 1-2
pieces of blank scratch paper, a pen/pencil, and a calculator.

You may ONLY use the equation sheets that are provided WITHIN the exam.
The use of printed versions will be considered a violation of the Academic
Integrity Policy.



Attempt History
Attempt Time Score
LATEST Attempt 1 74 minutes 46 out of 50



Score for this quiz: 46 out of 50
This attempt took 74 minutes.


Question 1 pts

,You may find the following files helpful throughout the
exam:

Statistics_Equation_Sheet
( https://previous.nursingabc.com/upload/images/Help_file_picture

Standard Normal Table
( https://previous.nursingabc.com/upload/images/Help_file_picture

T Table
(https://previous.nursingabc.com/upload/images/Help_file_picture
table.pdf)



A new drug is introduced that is supposed to reduce fevers.
Tests are done with the drug. The drug is given to 55
people who have fevers. It is found that the mean time that
it takes for the fever to get back to normal for this test
group is 380 minutes with a standard deviation of 85
minutes. Find the 90% confidence interval for the mean
time that the drug will take to reduce all fevers for all
people.

Answer the following questions:

1. Multiple choice: Which equation would you use to solve
this problem?


A.



B.


C.

, D.



E.




2. List the values you would insert into that equation.



3. State the final answer to the problem


Your Answer:

Side notes:

55 People

mean =380 min

SD= 85

90% confidence interval



Formula to use should be A



The values would be:

n=55, =380, s=85,z=1.645

plug in the equation would be

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