9a) Researchers obtained the body temperature of 52 healthy humans and found the average body temperature of these 52 people to be 98.4°F. Construct a 90% confidence interval for the population mean body temperature of healthy humans. Assume the population standard deviation is 0.97°F. Interpret your result.

Q: The mean pulse rate​ (in beats per​ minute) of adult males is equal to 69 bpm. For a random sample…

A: The hypothesized mean is 69.

Q: Researchers found that in certain counties in the country, females spend an average of 65 days in…

A: standard deviationσ=4n=36x¯=65

Q: What kind of tail is it? Is it one sample or two sample?

A:

Q: Weather in the tropics has a mean of 98.2o and a standard deviation of 0.62o. Find each z-score and…

A: Given that μ=98.2 and σ=0.62 a) z-score: z=score-μσ  =100-98.20.62 =2.9032   Condition for Unusual:…

Q: You measure 41 watermelons' weights, and find they have a mean weight of 47 ounces. Assume the…

A: Given that: n= 41.0 , x̄= 47.0 s= 2.5 At 90.0 % confidence level , z score= 1.645 So, 90.0 %…

Q: The standard deviation of the weights of elephants is known to be approximately 15 pounds.  We wish…

A: Sample mean = x̅ = 244 Sample size = n = 50 Population S.D = σ = 15 Standard Error = σ/√n  =…

Q: Blood glucose levels for overweight tweens, adolescents between the age 9-12, have a mean of 100…

A: A hypothesis test can be conducted to test whether the population mean is equal to the claimed value…

Q: You are a researcher for the National Highway Traffic Safety Administ estimate the average blood…

A: Given that,The sample size is The sample mean BAC (Blood Alcohol Concentration) is The known…

Q: You measure 23 turtles' weights, and find they have a mean weight of 71 ounces. Assume the popula…

A: Given that  Sample size n =23 Sample mean =71 Population standard deviation =11.3

Q: Assume that body temperatures of healthy adults are normally distributed with a mean of 98.2 and a…

A: From the given information X follows normal distribution with mean µ = 98.2 standard deviation σ =…

Q: Step 1 of 4: State the null and alternative hypotheses for the test. Step 2 of 4: Compute the value…

A: Here given  A medical researcher wants to compare the pulse rates of smokers and non-smokers. He…

Q: How much do wild mountain lions weigh? Six adult wild mountain lions are captured and released.…

A: Given data , 68, 104, 128, 122, 60, and 64.

Q: x¯ = Margin of error at 90% confidence level = 90% confidence interval =

A: Given: n=8 Confidence level=90% Height, X 67 66 64 75 63 67 72 71

Q: Human body temperatures in degrees Fahrenheit have a distribution that assumed to be symmetric and…

A: given data  normal distribution μ = 98.6σ = 0.9 hypothermic : bottom 1 % fever : top 1.5%

Q: A data set includes 109 body temperatures of healthy adult humans having a mean of 98.2°F and a…

A: The random variable X follows normal distribution. The sample size is 109. The sample mean is 98.2.…

Q: You measure 41 watermelons' weights, and find they have a mean weight of 79 ounces. Assume the…

A: Mean = 79Standard deviation = 2.4Sample size = 41

Q: A study analyzed the body fat percentage of 80 ISU students. The sample mean was 23.70 and the…

A:

Q: Peak expiratory flow (PEF) is a measure of a patient’s ability to expel air from the lungs. Patients…

A: The provided data is,

Q: Suppose the mean height in inches of all 9th grade students at one high school is estimated. The…

A:

Q: The population standard deviation is 5 inches. The heights of 7 randomly selected students are 73,…

A: Given that  Population standard deviation (σ) = 5 inches  heights of 7 randomly selected students…

Q: sample of 37 inchworms in Cititon Park was collected and measured. Their lengths had a mean of 2.56…

A: Given:  Sample size n=37  Sample mean(xbar) x¯ =2.56  Standard deviation( ?)=0.09  To find 95%…

Q: Many people believe that the average number of Facebook friends is 142. The population standard…

A:

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.