Summary MATH 225N Week 7 Lab Assignment (Summer 2022/2023) Complete Solutions Guide.

Summary MATH 225N Week 7 Lab Assignment (Summer 2022/2023) Complete Solutions Guide. MATH 225N Week 7 Lab Assignment Confidence Intervals CI) are basically the range of values we are fairly sure that our true values falls within. According to El-Masri, M. (2012), CI is one of the most dependable indicators of accurateness of our assumption. In week five, I gave the data for 10 nurses heights which was as follows: 60”, 68”, 66”, 65”, 65”. 67”, 63”, 65”, 68”, and 61”. I chose a convenience sample as I chose from 10 nurses in my workplace. It was quantitative continuous as it has numbers and may involve fractions. Some faults of this are that it does not represent the entire population. My choices were made based on ease of recruitment. This method can also demonstrate bias which will skew the results. The last fault that I see is that there was no study criteria developed for exclusion and inclusion. If I had chosen to utilize population sampling, the entire population would have been my dataset and the estimates would have been more reliable. Data 60 Mean 64.8000 68 Sample Standard Deviation 2.7406 66 65 65 67 63 65 68 61 The point estimate is the mean of 64.8000 which indicates that the average height of the ten nurses is 64.8 inches. The CI is Lower limit of 62.84 – upper limit of 66.76. I am 95% confident that the true mean height of all of the employees in my company is between 62.84 inches to 66.76 inches.