Math

StatisticsQ&A LibraryBody Temperatures Based on the sample results in Data Set 3 “Body Temperatures” in Appendix B, assume that human body temperatures are normally distributed with a mean of 98.20°F and a standard deviation of 0.62°F. a. According to emedicinehealth.com, a body temperature of 100.4°F or above is considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever? Does this percentage suggest that a cutoff of 100.4°F is appropriate? b. Physicians want to select a minimum temperature for requiring further medical tests. What should that temperature be, if we want only 2.0% of healthy people to exceed it? (Such a result is aStart your trial now! First week only $4.99!*arrow_forward*

Question

Body Temperatures Based on the sample results in Data Set 3 “Body Temperatures” in Appendix B, assume that human body temperatures are normally distributed with a mean of 98.20°F and a standard deviation of 0.62°F.

a. According to emedicinehealth.com, a body temperature of 100.4°F or above is considered to be a fever. What percentage of normal and healthy persons would be considered to have a fever? Does this percentage suggest that a cutoff of 100.4°F is appropriate?

b. Physicians want to select a minimum temperature for requiring further medical tests. What should that temperature be, if we want only 2.0% of healthy people to exceed it? (Such a result is a

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: Suppose that a grocery store buys milk for $2.10 and sells it for $2.60. If the milk gets old then t...

A: Step 1:From the provided information, the demand for milk is normally distributed with a mean (µ) of...

Q: Exercises pertain to P-values for a one-mean t-test. For each exercise, do the following tasks. a.Us...

A: a.Obtain the possible range of P-value for the given information.

Q: Grade Prediction. The Statistics Department at a large university would like to predict the final gr...

A: Predictor variable :- It is the independent variable in the regression equation, which explains the ...

Q: In each of Problems, we have provided a scenario for a confidence interval. Decide, in each case, wh...

A: Given that,Sample size=25Sample data shows three outliers but is otherwise roughly linear. Populatio...

Q: HIV It is estimated that worldwide, 1% of those aged 15–49 are infected with the human immunodeficie...

A: From the given information:The probability that those who aged 15-49 are infected with HIV is p = 0....

Q: Explain why increasing the sample size tends to result in a smaller sampling error when a sample mea...

A: Sampling error:When a sample is used to estimate a population characteristic, the error resulting is...

Q: You have seen that the larger the sample size, the smaller the sampling error tends to be in estimat...

A: Sampling error:When a sample is used to estimate a population characteristic the error resulting is ...

Q: For a t-curve with df = 21, find each t-value, and illustrate your results graphically. a. The t-val...

A: Click to see the answer

Q: Earthquakes. According to The Earth: Structure, Composition and Evolution (The Open University, S237...

A: a)Mean:The sum of all the entries divided by the total number of entries is known mean.The formula f...

Q: The highway mileage (mpg) for a sample of 8 different models of a car company can be found below. Fi...

A: The five number summary for highway mileage (mpg) is obtained below:The five number summary is obtai...

Q: What is the difference in assumptions between the one-mean t-test and the one-mean z-test?

A: The One Sample t Test determines whether the sample mean is statistically different from a known or ...

Q: Independent Events Based on a Pitney Bowes survey, when 1009 consumers were asked if they are comfor...

A: Given number of consumers selected for sample without replacement = 30As they are selected without r...

Q: For a t-curve with df = 18, obtain the t-value and illustrate your results graphically. a. The t-val...

A: The given results can be obtained by using MINITAB.a).Step-by-step procedure to obtain probability d...

Q: In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indic...

A: Continuity correction:The binomial probability is converted to a normal distribution probability by ...

Q: Two t-curves have degrees of freedom 12 and 20, respectively. Which one more closely resembles the s...

A: Condition for standard normal curve: If the sample size is large (>30), then the distribution fol...

Q: The number of gallons of paint that Home Depot sells in a given day is normally distributed with a m...

A: Click to see the answer

Q: In Exercises, we have given the value obtained for the test statistic, z, in a one-mean z-test. We h...

A: a).The p-value can be obtained by entering the formula “=2*NORM.S.DIST(-3.08,TRUE)” in Excel:

Q: Whta kind of plot is useful for deciding whether it is reasonable to find a regression plane for a s...

A: Scatterplot matrix:It is a collection of scatterplots organized into a matrix. Each scatterplot show...

Q: A set of n = 15 pairs of scores (X and Y values) produces a regression equation of Yˆ = 2X + 6. Find...

A: Regression analysis:Regression analysis estimates the relationship among variables. That is, it esti...

Q: Assume that x has a normal distribution with the specified mean and standard deviation. Find the ind...

A: The value of z-score formula is given below:

Q: In each of Exercises, assume that the population standard deviation is known and decide whether use ...

A: The following assumptions are required for the large sample confidence interval about the mean to b...

Q: Significant For 100 births, P(exactly 56 girls) = 0.0390 and P(56 or more girls) = 0.136. Is 56 girl...

A: Click to see the answer

Q: National Statistics Day a. If a person is randomly selected, find the probability that his or her bi...

A: a)Let event A denote the randomly selecting a person who had birthday on October 18.There is only on...

Q: The maintenance department at the main campus of a large state university receives daily requests to...

A: Empirical rule:68% of all possible observations lie within one standard deviation from the mean.95% ...

Q: Blood Pressure and Platelets Given below are the systolic blood pressure measurements (mm Hg) and bl...

A: Here, the association between systolic blood pressure and blood platelet has to be obtained.

Q: Data was collected for 300 fish from the North Atlantic. The length of the fish (in mm) is summarize...

A: The class boundary between the third and fourth classes is obtained below:Introduction:For given cla...

Q: Flashlight Battery Lifetimes. A brand of ashlight battery has normally distributed lifetimes with a ...

A: The probability of a random battery lasting longer than 25 hours:

Q: Two thousand frequent business travelers were asked which Midwestern city they prefer: Indianapolis,...

A: The frequency table for the given data is shown below:

Q: What is the additive identity

A: In this case, we need write the definition of additive identity.

Q: Suppose that you want to perform a hypothesis test for a population mean, µ. a. Express the null hyp...

A: Hypothesis testing: Hypothesis testing was introduced by R.A.Fisher (Ronald Fisher).It is a ...

Q: The U.S. Geological Survey compiled historical data about Old Faithful Geyser (Yellowstone National ...

A: From the given information, the first sample size is 9,360 observations; sample mean is 62.2 minutes...

Q: In each of Exercises, assume that the population standard deviation is known and decide whether use ...

A: As per the sampling Distribution If the true population distribution of a random variable x is norm...

Q: Another type of confidence interval is called a one-sided confidence interval. A one-sided confidenc...

A: (a) The 95% lower confidence bound for the mean weight of all small bags of peanut M&Ms is 50.99...

Q: Change for a Quarter How many different ways can you make change for a quarter? (Different arrangeme...

A: The number of coins that are less than a quarter in terms of money is three. They arePenny ($0.01)Ni...

Q: In each of Exercises, we provide a sample mean, sample size, sample standard deviation, and confiden...

A: a)Critical value:For 90% level of significance,

Q: In Exercises, X denotes a binomial random variable with parameters n and p. For each exercise, indic...

A: Consider X be a random variable which follows binomial distribution with parameters n and p. The nor...

Q: The results of a recent survey indicate that the average new car costs $23,000, with a standard devi...

A: It is given that the mean new car cost is $23,000 with a standard deviation of $3,500.

Q: A variable of a population has a mean of µ = 35 and a standard deviation of σ = 42. a. If the variab...

A: a.Sampling distribution of a sample mean:

Q: Drone Deliveries Based on a Pitney Bowes survey, assume that 42% of consumers are comfortable having...

A: From the given information:The probability that the consumers are comfortable having drones is p = 0...

Q: Can you help me solve and understand d-f? Given a=3 and b=4

A: (d) Product of x:The value of product of x is obtained as 210.