rterial blood gas analysis performed on a sample of 15 physically active adult males yielded an average resting PaO2 standard deviation of 5.303 and a mean value within an interval of confidence (76.766, 82.966). Rounded to the nearest whole percent, what level of confidence was used for this interval calculation? Enter your choice below,  followed by a comma, and then an explanation of why you made your choice. Explain why it is (A) 95% (B) 90% (C) 98% (D) 92%

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A: Bar chart is given here. Error bars gives the information about how the data is spread around the…

Q: Based on the textbook and in - class exercise, answer the questions below: For the data set:   (1,…

A: The question is about measures.Given :

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A: Consider a random variable X which represents the diastolic blood pressures of adult women in the…

Q: Compare the percentiles to the quartiles respectively. Are the values different?

A: We have to compare the percentiles and quartiles of the given data. Percentiles are the 99 points…

Q: You throw a ball as far as you can 5 times, recording the distance for each throw: 165 feet, 184…

A: since only 5 observation is given we will consider them as sample (n = 5)and population (N = 100)…

Q: Nationally, 80 percent of adults own an thermometer. You are interested in whether the same…

A: We have given that  Sample size n = 100 Sample proportion p^=75%=0.75 Population proportion…

Q: You are estimating the mean size of farms in New Hampshire.  You want your 95% CI to have a margin…

A: The formula for the sample size is as follows:

Q: n the brackets, how did you know to use the 21 and 20 percentiles?

A: The number of observations, The data set…

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A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: A nursing home has 2000 patients. You sample 170 patients. Can you use the infinite standard…

A:

Q: Many athletes (and their parents) worry about the risk of concussions when playing sports. A…

A: First let us sort the head circumferences (in inches) for the players on the team; No. Head…

Q: G iven:  mean =85    s=12     n =3500 What % of scores are between 97 to 109 ?

A:

Q: find the z-number associated with a 92% level of confidence. find the z-number associated with a…

A:

Q: You have a sample of 10 (sorted) scores:   -15.5 -13.4 -12.7 -12.2 -11.1 -10.8 -9.1 -8.9 -7.9 -7.1…

A: -15.5-13.4-12.7-12.2-11.1-10.8-9.1-8.9-7.9-7.1Sample of size(n)=10

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: Find the sample standard deviation. The top five scores on last semesters midterms were 90 97 100 90…

A: The question is about measures Given : Data - 90, 97, 100, 90, 93   To find : Sample std. deviation

Q: A Gallup poll wants to determine the mean number of books Americans read each year. How many…

A: given, population standard deviation σ = 5.4 Margin of error (E) = 0.57 significance level (α) =…

Q: Compute the mean, median, Variance, and the standard deviation for the data below: 3,2 ,3, 4, 3…

A:

Q: You measure the height of 10 people and come up with an average of 70 inches and a standard…

A: x=70s=4n=10 The t scores for 68 inches, t=68-xsn=68-70410=-1.581139

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: The scores on the Wechsler Adult Intelligence Scale are approximately Normal, with  = 100 and  = 11.…

A: The scores on the Wechsler Adult Intelligence Scale are approximately Normal

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: Which percentile would be used to find the multiplier for 60% confidence? Select one: a. 20th…

A: Given find the multiplier for 60% confidence

Q: give the sample standard deviation of this data set: 20, 25, 35, 40

A: Sample Standard deviation:   If the standard deviation is calculated for sample then it is called as…

Q: As reported in Runner's World magazine, the times of the finishers in the New York Cit km run are…

A:

Q: A candy manufacturer has replaced 5.17% of their chocolate bars with a new mystery flavor. Find the…

A: Given: Sample size (n) = 424 p(chocolate bars with a new mystery flavor) = 5.17% = 0.0517

Q: The scores on a statewide chemistry exam were normally distributed with ?=73.08 and ?=6. Gabriela…

A: Given data isMean(μ)=73.08standard deviation(σ)=6

Q: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

Q: You have a sample of 10 (sorted) scores: -15.5 -13.4 -12.7 -12.2 -12 -10 -9.1 -8.9 -7.9 -7.1…

A: From the provided information,Number of observations (n) = 10

Q: A recent Nielsen analysis found that the typical U.S. smartphone user is spending an average of 220…

A: The random variable time follows normal distribution. The sample mean is 205. The sample standard…

Q: x 1.8 2.3 6.7 11.3 16.7 25.2 26.9 27.9

A: Percentile is the value in the data set below which certain percentage of the data lie.   The…

Q: A Gallup poll wants to determine the mean number of books Americans read each year. How many…

A: The population standard deviation is .The margin of error is The level of Confidence level is .