Added a hw2

xieem · May 18, 2014 · 4bce3bd · 4bce3bd
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diff --git a/06_StatisticalInference/homework/hw2.Rmd b/06_StatisticalInference/homework/hw2.Rmd
@@ -104,17 +104,21 @@ $$
 
 
 
----  &radio
+---  &multitext
 Suppose that the number of web hits to a particular site are approximately normally
-distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. What number of web hits per day represents the number so that only
+distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. 
+
+1. What number of web hits per day represents the number so that only
 5% of days have more hits? Express your answer to 3 decimal places.
 
 
+
 *** .hint
 Let $X$ be the number of hits per day. We want $P(X \leq 93)$ given that
 $X$ is $N(100, 10^2)$.
 
 *** .explanation
+<span class="answer">`r round(qnorm(.95, mean = 100, sd = 10), 3)`</span>
 ```{r}
 round(qnorm(.95, mean = 100, sd = 10), 3)
 round(qnorm(.05, mean = 100, sd = 10, lower.tail = FALSE), 3)

diff --git a/06_StatisticalInference/homework/hw2.html b/06_StatisticalInference/homework/hw2.html
@@ -181,10 +181,14 @@ <h2>About these slides</h2>
 <slide class="" id="slide-5" style="background:;">
   <article data-timings="">
 
-<div class="quiz quiz-single well ">
+<div class="quiz-text quiz-multitext well">
   <p>Suppose that the number of web hits to a particular site are approximately normally
-distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. What number of web hits per day represents the number so that only
-5% of days have more hits? Express your answer to 3 decimal places.</p>
+distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. </p>
+
+<ol>
+<li>What number of web hits per day represents the number so that only
+5% of days have more hits? Express your answer to 3 decimal places.</li>
+</ol>
 
   <button class="quiz-submit btn btn-primary">Submit</button>
   <button class="quiz-toggle-hint btn btn-info">Show Hint</button>
@@ -197,7 +201,9 @@ <h2>About these slides</h2>
 
 </div>
 <div class="quiz-explanation">
-  <pre><code class="r">round(qnorm(.95, mean = 100, sd = 10), 3)
+  <p><span class="answer">116.449</span></p>
+
+<pre><code class="r">round(qnorm(.95, mean = 100, sd = 10), 3)
 </code></pre>
 
 <pre><code>[1] 116.4

diff --git a/06_StatisticalInference/homework/hw2.md b/06_StatisticalInference/homework/hw2.md
@@ -101,17 +101,21 @@ $$
 
 
 
----  &radio
+---  &multitext
 Suppose that the number of web hits to a particular site are approximately normally
-distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. What number of web hits per day represents the number so that only
+distributed with a mean of 100 hits per day and a standard deviation of 10 hits per day. 
+
+1. What number of web hits per day represents the number so that only
 5% of days have more hits? Express your answer to 3 decimal places.
 
 
+
 *** .hint
 Let $X$ be the number of hits per day. We want $P(X \leq 93)$ given that
 $X$ is $N(100, 10^2)$.
 
 *** .explanation
+<span class="answer">116.449</span>
 
 ```r
 round(qnorm(.95, mean = 100, sd = 10), 3)