Quiz vs Lecture Pulse Rates Do you think your pulse rate is higher when you are taking a quiz than when you are sitting in a lecture? The data in Table 1 show pulse rates collected from 10 students in a class lecture and then from the same students during a quiz. The data are stored in QuizPulse10. Student 1 2 3 4 5 6 7 8 9 10 Mean Std. Dev. Quiz 75 52 52 80 56 90 76 71 70 66 68.8 12.5 Lecture 73 53 47 88 55 70 61 75 61 78 66.1 12.8 Table 1 Quiz and lecture pulse rates for 10 students Construct a 90% confidence interval for the difference in mean pulse rate between students taking a quiz and sitting in a class lecture. Click here for the dataset associated with this question.
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
Quiz vs Lecture Pulse Rates
Do you think your pulse rate is higher when you are taking a quiz than when you are sitting in a lecture? The data in Table 1 show pulse rates collected from 10 students in a class lecture and then from the same students during a quiz. The data are stored in QuizPulse10.
| Student | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | Mean | Std. Dev. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Quiz | 75 | 52 | 52 | 80 | 56 | 90 | 76 | 71 | 70 | 66 | 68.8 | 12.5 |
| Lecture | 73 | 53 | 47 | 88 | 55 | 70 | 61 | 75 | 61 | 78 | 66.1 | 12.8 |
Table 1 Quiz and lecture pulse rates for 10 students
Construct a 90% confidence interval for the difference in mean pulse rate between students taking a quiz and sitting in a class lecture.
Click here for the dataset associated with this question.
Round your answers to one decimal place.
The 90% confidence interval is ____? to ____?
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