Solution Library

Calculation of Difference Between New Drug for Heart Rate Reduction and Placebo

Question

Use the following description and table to answer the questions.
A pharmaceutical company wants to determine if there is a significant reduction in heart rate with their new drug, Clardozan, at the .01 level of significance. The researchers took a random sample of 30 adults and randomly selected each to receive either Clardozan or the placebo. Heart rates for each subject and treatment group are presented below; assume data are normally distributed with equal variances.

 Subject    Clardozan Heart Rate    Subject    Placebo Heart Rate       
     1                     81                      2                   78       
     4                     60                      3                   88       
     7                     91                      5                   63       
     8                   103                      6                   56       
   10                     85                      9                   70       
   13                     88                     11                  77       
   14                     84                     12                  64       
   16                     60                     15                  48       
   17                     60                     18                  51       
   19                     72                     20                  52       
   23                     96                     21                  76       
   24                     75                     22                  80       
   26                     58                     25                  51       
   29                     70                     27                  66       
   30                     81                     28                  55    

1.    What is the independent variable? What is the dependent variable? Why?
2.    What is the null hypothesis? What is the alternative hypothesis? Is this a one-tailed or a two-tailed test?
3.    What test statistic will you use? Why?
4.    What is the critical value? What is the value of the test statistic?
5.    Would you accept or reject the null hypothesis? Explain your conclusion in a 100 to 150 word summary.

Download Full Solution

Comments

  • HWA
    Rasha

    this is a very good website

  • HWA
    maani

    I have 50 questions for the same test your page is showing only 28

  • HWA
    joeanne

    hi can you please help or guide me to answer my assignments. thanks

  • HWA
    joeanne

    hi can anyone help or guide me to my assignments. thanks

  • HWA
    Monik


  • HWA
    Cristina

    This solution is perfect ...thanks

  • HWA
    Janete

    Hello Allison,I love the 2nd image that you did! I also, had never heard of SumoPaint, is something that I will have to exolpre a bit! I understand completely the 52 (or so) youtube videos that you probably watched. Sometimes they have what you want, sometimes they don't! However, it is always satisfying when you are able to produce something that you have taught yourself. Great job!Debra 0 likes

  • HWA
    Sandeep

    Perfect bank of solution. 

  • HWA
    Oxana

    great !

  • HWA
    Paul Brandon-Fritzius

    thanks for the quick response. the solution looks good. :)

  • HWA
    tina Johnson

    thnx for the answer. it was perfect. just the way i wanted it. 

  • HWA
    Giuseppe

    works fine.