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For each of the following research questions, state the null and research hypotheses in words and in symbols; then determine the type of the hypothesis test.     Recent recommendations suggest 60 minutes of physical activity per day. A sample of 50 adults in a study of cardiovascular risk factors report exercising a mean of 38 minutes per day with a standard deviation of 19 minutes.   A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma.  Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo.  The primary outcome is self-reported reduction of symptoms.  Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo

For each of the following research questions, state the null and research hypotheses in words and in symbols; then determine the type of the hypothesis test.     Recent recommendations suggest 60 minutes of physical activity per day. A sample of 50 adults in a study of cardiovascular risk factors report exercising a mean of 38 minutes per day with a standard deviation of 19 minutes.   A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma.  Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo.  The primary outcome is self-reported reduction of symptoms.  Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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For each of the following research questions,

  1. state the null and research hypotheses in words and in symbols; then
  2. determine the type of the hypothesis test.

 

 

  1. Recent recommendations suggest 60 minutes of physical activity per day. A sample of 50 adults in a study of cardiovascular risk factors report exercising a mean of 38 minutes per day with a standard deviation of 19 minutes.

 

A clinical trial is conducted to compare an experimental medication to placebo to reduce the symptoms of asthma.  Two hundred participants are enrolled in the study and randomized to receive either the experimental medication or placebo.  The primary outcome is self-reported reduction of symptoms.  Among 100 participants who receive the experimental medication, 38 report a reduction of symptoms as compared to 21 participants of 100 assigned to placebo

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