Mathematics, 21.05.2020 19:57 apowers1760
A random sample of 20 healthy adults eating a traditional American diet is selected. They agree to adopt a vegetarian diet for 1 month. Based on their 20 sample cholesterol change values, a 95% one-sample t confidence interval for the population mean change in blood cholesterol level after switching diet is reported as the interval -27.9 to -11.6 mg/dl. If we use a matched-pairs t confidence interval in some statistical software with the 20 sample cholesterol values at the beginning of the study and the 20 sample cholesterol values at the end of the study, the resulting 95% confidence interval;a) could be narrower or wider but we cannot tell until we get the software output. b) would be much narrower. c) would be slightly narrower. d) would be exactly the same. e) would be much wider. f) would be slightly wider.
Answers: 3
Mathematics, 21.06.2019 14:30
Which statement about the relative areas of ? abc and ? xyz is true? the area of ? abc > the area of ? xyz the area of ? abc < the area of ? xyz the area of ? abc = the area of ? xyz more information is needed to compare.
Answers: 2
Mathematics, 21.06.2019 22:00
The mean finish time was 185.52 with a standard deviation of 0.327 minute. the winning car driven by chris finished in 185.13. the previous year race had a mean finish time of 110.3 with a standard deviation of 0.106. the winning car that year driven by karen finished in 110.13 minutes. find their respective z-scores. chris - z-score karen “- z-score
Answers: 1
Mathematics, 21.06.2019 22:50
If set d is not the empty set but is a subset of set e, then which of the following is true? d ∩ e = d d ∩ e = e d ∩ e = ∅
Answers: 1
A random sample of 20 healthy adults eating a traditional American diet is selected. They agree to a...
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