A random sample of 30 adult bottlenose dolphin was found to have a mean weight of 550 pounds with a standard deviation of 50 pounds. What will be the Margin of Error (Maximum Error of Estimate) for a 98% confidence level? Round the answer to 2 decimal places

Q: A research scientist wants to know how many times per hour a certain strand of bacteria reproduces.…

A:

Q: The mean value of the 130 observation is 17 with standard deviation deviation equal to 0.98. Find…

A:

Q: study of peach trees found that the average number of peaches per tree was 625. The standard…

A: Given that  Population Standard Deviation = 35

Q: Among those taking the Graduate Record Exam, 18 people are randomly selected. This group had a mean…

A: n = 18 s =140 mu = 550

Q: The weights of men in their 30s are normally distributed with a mean of 190 pounds and a standard…

A: From the provided information, Population mean (µ) = 190 pounds Population standard deviation (σ) =…

Q: For a random sample of 55 overweight men, the mean of the number of pounds that they were overweight…

A: It is given that the sample mean is 32 and the population standard deviation is 4.1.

Q: a 95% confidence interval for the mean of diastolic BP in women is 62 to 110mmHg.  What is the…

A: We have given that 95% confidence interval CI = ( 62, 110) Confidence level (c) = 95% = 0.95…

Q: A recent survey of 6 social networking sites has a mean of 15.9 million visitors for a specific…

A: Given Data: Sample mean (x )=15.9 Standard deviation (sd)=3.3 n=6   We know that x-μsd/n~ tn-1

Q: You measure 35 dogs' weights, and find they have a mean weight of 51 ounces. Assume the population…

A: The mean is 51 ounces and the population standard deviation is 7.

Q: A research scientist wants to know how many times per hour a certain strand of bacteria reproduces.…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 96.6 and a standard…

A: Standard normal distribution: The standard normal distribution is a special case of normal…

Q: A meteorologist who sampled 10 thunderstorms found that the average speed at which they traveled…

A:

Q: A group of data has a mean of 65 with a standard deviation of 5. What z-score is possible if the…

A: According to the provided information,

Q: Assume that adults have IQ scores that are normally distributed with a mean of 97.3 and a standard…

A: Given data Mean μ= 97.3 Standard deviation ? = 22.8 First quartile is given by Probability = 0.25

Q: A study was conducted with a sample of 20 college students to see how many students would have low…

A: Suppose a random variable x defines the bone mineral density of students.

Q: A research scholar wants to know how many times per hour a certain strand of virus reproduces. The…

A: It is given that,Sample mean = 11.3.Population standard deviation, sigma is 2.3.The sample size, n…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 104.6 and a standard…

A:

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.1 and a standard…

A:

Q: The weight of newborn babies is normally distributed, with a mean of 3.7 kilograms and a standard…

A: GivenThe weight of new born babies are normally distributed.The mean =3.7 KgThe standard deviation…

Q: You sample 40 dogs and find a sample mean weight of 60 lbs with a sample standard deviation of 5.…

A: From the provided information, Sample size (n) = 40 Sample mean (x̅) = 60 lbs Sample standard…

Q: vey of 9 social networking sites has a mean of 13.74 million visitors for a specific month. The…

A: As the population standard deviation is not known, we will use t distribution.Degrees of freedom are…

Q: ifty refrigerators from two different models of a refrigerator manufacturer are compared to see if…

A: Hypothesis testing plays a major role in research and development. To diagnose the underlying cause…

Q: A review of all records in a large vetinary clinic show that indoor domestic cats at the clinic have…

A: Mean () =15standard deviation () =4sample size (n)= 37

Q: In a survey, 18 people were asked how much they spent on their child's last birthday gift. The…

A: From the provided information, Sample size (n) = 18 Sample mean (x̄) = 35.40 Standard deviation (s)…

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: A market researcher wants to estimate the amount of money that a Christmass hopper will spend on…

A:

Q: A random sample of 43 cars in the drive-thru of a popular fast food restaurant revealed an average…

A: Given that mean=16.87

Q: A medical statistician wants to estimate the average weight loss of people who are on a new diet…

A: Given,standard deviation(σ)=8margin of error(E)=2α=1-0.94=0.06α2=0.03Z0.03=1.8808       (from…

Q: Assume that adults have IQ scores that are normally distributed with a mean of 95.4 and a standard…

A: Let "X" be the IQ score of adults. Draw the normal curve and shade the area of 0.25 to the left…

Q: A researcher named liza wants to estimate the mean age of pilots in an airline company. The…

A: Given: σ=6.30Length of the interval=3.2

Q: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

A: Assume that adults have IQ scores that are normally distributed with a mean of 100.3 and a standard…

Q: kes an average of 13.2 minutes for blood to begin clotting after an injury. An EMT wants to see if…

A:

Q: A mandatory competency test for high school sophomores has a normal distribution with a mean of 410…

A:

Q: Karen wants to advertise how many chocolate chips are in each big chip cookie at her bakery . She…

A:

Q: A random sample of 43 cars in the drive-thru of a popular fast-food restaurant revealed an average…

A: given data n = 43x¯ = 19.65σ = 5.7696% ci for μ = ?

Q: The mean score of Grade 11 students in a General Math examination was observed to be 75 with a…

A:

Q: A medical doctor who wanted to study the heights of adult men and women took a random sample of 150…

A: Given n1=150 n2=120

Q: A university dean wishes to estimate the average number of hours that freshmen study each week. The…

A: