Question

The mean body mass index (BMI) in patients free of diabetes was reported as 28.2. Based...

The mean body mass index (BMI) in patients free of diabetes was reported as 28.2. Based on the data provided in Q19, an investigator wants to assess whether the true BMI mean is significantly higher than 28.2. At a 5% significant level, what is the critical value this investigator should choose for this hypothesis testing? (Round to 3 decimal places)

        

0 0
Add a comment Improve this question
Answer #1

At 5% significnce level the critical value is z0.025 = 1.96

                     

     

          

                                    

                                                               

                        

                                           

                         

Add a comment
Know the answer?
Add Answer to:
The mean body mass index (BMI) in patients free of diabetes was reported as 28.2. Based...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • The mean BMI in patients free of diabetes was reported as 28.2. The investigator conducting the...

    The mean BMI in patients free of diabetes was reported as 28.2. The investigator conducting the study hypothesizes that the BMI in patients free of diabetes is higher. Based on the data given below is there evidence that the BMI is significantly higher that 28.2? Use a 5% level of significance.    25 27 31 33 26 28 38 41 24 32 35 40 Critical t value:                  (2 points) Computed t =          (2 points) Based on comparing the critical t...

  • The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes...

    The following are body mass index (BMI) scores measured in 12 patients who are free of diabetes and participating in a study of risk factors for obesity. Body massindex is measured as the ratio of weight in kilograms to height in meters squared. Generate a 95% confidence interval estimate of the true BMI.25 27 31 33 26 28 38 41 24 32 35 40

  • 1. (15 Marks) The following are body mass index (BMI) scores measured in 11 patients who...

    1. (15 Marks) The following are body mass index (BMI) scores measured in 11 patients who are free of diabetes and participating in a study of risk factors for obesity. Body mass index is measured as the ratio of weight in kilograms to height in meters squared 25, 27, 31, 28, 28, 41, 24, 32, 46, 35 and 40 Find the following a) Mean (I point) b) Meclion (1 point) c) Range (1 point) d) Lower Quartile (Q) (1 point)...

  • In the United States, we use body mass index (BMI) to assess one's health based on...

    In the United States, we use body mass index (BMI) to assess one's health based on weight. Assume you area health care provider practicing in the US and one of your patients is a Senegalese woman who recently immigrated here. She has always been revered in her home country (high status, well thought of, etc.) due to her large body size. How do you reconcile her desire to maintain her current BMI when by US standards, she is considered "obese...

  • We have the survey data on the body mass index (BMI) of 642 young women. The...

    We have the survey data on the body mass index (BMI) of 642 young women. The mean BMI in the sample was x¯=26.1. We treated these data as an SRS from a Normally distributed population with standard deviation ?=7.3. Give confidence intervals for the mean BMI and the margins of error for 90%, 95%, and 99% confidence. Conf. Level Interval (±±0.01) margins of error (±±0.0001) 90% to 95% to 99% to

  • Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school dis...

    Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school district in Oklahoma. A random sample of size 61 five year old girls was drawn, and the sample mean BMI was found to be 17.4. Although BMI measurements are typically a little right-skewed, because of the reasonably large sample size, the researchers felt it was reasonable to use procedures based on the normal distribution. Based on previous information, they...

  • Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school dis...

    Researchers were interested in estimating the mean body mass index (BMI) for 5 year old girls in a very large school district in Oklahoma. A random sample of size 70 five year old girls was drawn, and the sample mean BMI was found to be 17.4. Although BMI measurements are typically a little right-skewed, because of the reasonably large sample size, the researchers felt it was reasonable to use procedures based on the normal distribution. Based on previous information, they...

  • We have the survey data on the body mass index (BMI) of 645 young women. The...

    We have the survey data on the body mass index (BMI) of 645 young women. The mean BMI in the sample was X = 28.5. We treated these data as an SRS from a Normally distributed population with standard deviation o = 7.5. Give confidence intervals for the mean BMI and the margins of error for 90%, 95%, and 99% confidence. (Round your answers to two decimal places.) Confidence Level Interval margin of error 90% 95% 99% ggg How does...

  • Question 11 1 pts In 2012, the mean weight of women was reported at 2012 =...

    Question 11 1 pts In 2012, the mean weight of women was reported at 2012 = 162 lbs. Suppose that an investigator hypothesizes that weights are even higher in 2015. She collected a sample of 29 women in the year of 2015, from which she measured a mean weight of 158 lbs with a standard deviation of 10 lbs. An two-tailed alpha level = .05 is applied. Select ALL correct statement(s) below: The investigator aims to compare a sample mean...

  • Diabetes patients from a diabetes clinic were invited to apply for a free of charge, a...

    Diabetes patients from a diabetes clinic were invited to apply for a free of charge, a long-term exercise program. After eligibility screening, 39 participants enrolled and completed > 65% of the 108 exercise sessions. Among those who did not apply for the program, 85 were included in the control group. Data related to Hba1c, BMI and 10 years risk of CAD, etc. were collected at the clinic two weeks before the start of the exercise program (baseline) and two weeks...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT