The testing times for a group of college students were normally distributed with a mean ofu = 30 minutes and a standard deviation of a = 3.7 minutes.The bell curve below represents the distribution for testing times. The scale on the horizontalaxis is equal to the standard deviation.Fill in the indicated boxes.u = 30o = 3.7H-30 u-20u+ 20 u+ 3ơUsed the Empirical Rule to complete the following statements:68% of testing times were betweenminutes andminutes.95% of testing times were betweenminutes andminutes.99.7% of testing times were betweenminutes andminutes.50% of testing times were belowminutes.

We have to fill blank using empirical rule.

The testing times for a group of college students were normally distributed with a mean of u= 30 minutes and a standard deviation of o= 3.7 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. L= 30 O = 3.7 H-30 u-20 u+ 20 u+ 30 Used the Empirical Rule to complete the following statements: 68% of testing times were between minutes and minutes. 95% of testing times were between minutes and minutes. 99.7% of testing times were between minutes and minutes. 50% of testing times were below minutes.

The testing times for a group of college students were normally distributed with a mean of u= 30 minutes and a standard deviation of o= 3.7 minutes. The bell curve below represents the distribution for testing times. The scale on the horizontal axis is equal to the standard deviation. Fill in the indicated boxes. L= 30 O = 3.7 H-30 u-20 u+ 20 u+ 30 Used the Empirical Rule to complete the following statements: 68% of testing times were between minutes and minutes. 95% of testing times were between minutes and minutes. 99.7% of testing times were between minutes and minutes. 50% of testing times were below minutes.

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: The mean lifetime of a car engine is believed to be greater than 175,000 miles. Sample data are: n=…

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 :

Q: Dr. Samwell Tarly wants to estimate the number of books checked out of the library in the past year.…

A: It is given that the mean is 10,000 and the standard deviation is 10.

Q: The number of reviews for each of the local restaurants is counted. The results are normally…

A: Let X represents the number of reviews for each of the local restaurants. Therefore X follows normal…

Q: Male 0.48 0.36 0.20 0.55 0.45 0.46 0.47 0.23 Female 0.35 0.37 0.27 0.29 Is there any evidence that…

Q: What is the percentage of observations that are at least as extreme as a z score of -1.32 in both…

A: The objective is to find the percentage of observations that are at least as extreme as a z score of…

Q: You are given the following information for a sample (mean = 40; standard deviation = 10). What is…

A: According to the provided information:

Q: z-score Percentile z-score Percentile z-score Percentile -3.0 0.13 -2.0 2.28 -1.0 15.87 -2.9 0.19…

A: It is given that Mean = 24.8 Standard deviation = 2.5 Z-Score, Z = ( X - μ )/σ

Q: You have a normal distribution of test scores with a mean of 100 and an SD of 15. Use the empirical…

A: given data normal distributionμ = 100σ = 15use empirical rule to answer . What range of scores…

Q: For the following sample of n = 7 scores: 8, 6, 5, 2, 6, 3, 5a. Sketch a histogram showing the…

A: Final Answer:

Q: Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile tires.…

A: According to central limit theorem, for large sample (>30) or if the population follows normal…

Q: Find the Z-score that describes the following proportions under the normal curve (within 0.01…

A: Given P(Z<Z score)=10%

Q: Find the Z-score that describes the following proportions under the normal curve (within 0.01…

A: The score is 32%.

Q: The heights of adult American men can be modeled by a normal distribution with mean μ = 69 inches…

A: The heights of adult American men can be modeled by a normal distribution with mean μ = 69 inches…

Q: Find the following z scores with a mean of 20 and a standard deviation of 5. a. 20 b. 32 c. 28 d. 25

A: Note :Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question…

Q: We wish to estimate the difference in mean GPAS at two different colleges. Consider the following…

A: Given Information: School A: x¯1=4.05 s1=0.03 n1=80 School B: x¯2=3.95 s2=0.04 n2=90 Confidence…

Q: If the age distribution is a bellshaped distribution, what percentage of the students are less than…

A: Obtain the percentage of the students are less than 23 years old. The percentage of the students are…

Q: You want to create a Z-interval for a population mean, using table C, with the following…

A: From the provided information, Sample size (n) = 25 Mean (x̅) = 34.2 Population standard deviation…

Q: The following data was collected during the Framingham Heart Study. Is there a statistically…

A: Let men and women are the sample1 and sample 2 respectively.

Q: Suppose we roll a fair four-sided die 11 times. Let X be the count of 3s rolled. Then X has a…

Q: The mean GPA for 50 students was 3.02 and the standard deviation was 0.3. Part A : Assume that the…

A: Given : for 50 students Mean GPA (μ) =3.02 Standard deviation (S.D)(σ) = 0.3

Q: The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-…

A: Empirical rule: The probability that the observation under the normal curve lies within 1 standard…

Q: Identify the data value corresponding to the indicated percentile. The amount of sleep an adult gets…

A: The normal distribution:A continuous random variable X is said to follow normal distribution with…

Q: IQ scores have a bell-shaped (mound shaped) distribution with a mean of 100 and a standard deviation…

A: Note: Hi there! Thank you for posting the question. As there are multiple different questions,…

Q: Samples of body temperatures were taken from both men and women. The information from the samples is…

A: (a) State the Hypotheses- Null hypothesis (H_0)): μ1=μ2 (The mean body temperatures of men and…

Q: The following data was collected during the Framingham Heart Study. Is there a statistically…

A: The sample size is sufficiently large. So, can use the standard normal distribution.

Q: The mean Math ACT score was 20.5, with a standard deviation of 5.5. Sarah scored a 26 on the Math…

Q: he mean GPA of all 45,038 students at Uneeda College is 3.21. A random sample of 50 GPAs from the…

A: given data mean GPA of all 45,038 students at Uneeda College is 3.21. A random sample of 50 GPAs…

Concept explainers

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.

Question

100%

The testing times for a group of college students were normally distributed with a mean of
u = 30 minutes and a standard deviation of a = 3.7 minutes.
The bell curve below represents the distribution for testing times. The scale on the horizontal
axis is equal to the standard deviation.
Fill in the indicated boxes.
u = 30
o = 3.7
H-30 u-20
u+ 20 u+ 3ơ
Used the Empirical Rule to complete the following statements:
68% of testing times were between
minutes and
minutes.
95% of testing times were between
minutes and
minutes.
99.7% of testing times were between
minutes and
minutes.
50% of testing times were below
minutes.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Point Estimation, Limit Theorems, Approximations, and Bounds$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions

Given that American women’s heights are normally distributed with a mean of 65 inches and a standard deviation of 3.5 inches, how tall does a woman have to be to have a height in the 90th percentile? Round off to 1 decimal place and choose the best answer:
Calculate the SEM (standard error of the mean) for the following data:a. Population standard deviation = 15b. Sample size = 25
The number of potholes in any given 1 mile stretch of freeway pavement in Pennsylvania has a bell-shaped distribution. This distribution has a mean of 44 and a standard deviation of 11. Using the empirical rule, what is the approximate percentage of 1-mile long roadways with potholes numbering between 22 and 55?Do not enter the percent symbol.ans = ___________ %
Among applicants to a school of public health, the average GRE writing score was about 3, the SD was about 0.5, and the lowest score was 2.5. True or False: the GRE writing scores follow the normal curve. Select one: True False Brevious page Next page C
Find the range, vanance, and standard deviation for the given sample data. Include appropriate units in the results. Listed below are the measured radiation absorption rates (in Wikg) corresponding to various cell phone models. If one of each model is measured for radiation and the results are used to find the measures of variation, are the results typical of the population of cell phones that are in use? 1.16 0.82 0.51 0.69 1.11 0.82 0.69 0.75 0.52 0.53 1.34
In the 1992 presidential election, Alaska's 40 election districts averaged 2002 votes per district for President Clinton. The standard deviation was 566. (There are only 40 election districts in Alaska.) The distribution of the votes per district for President Clinton was bell-shaped. Let X = number of votes for President Clinton for an election district. (Source: The World Almanac and Book of Facts) Round all answers except part e. to 4 decimal places. Find the third quartile for votes for President Clinton. Round your answer to the nearest whole number.
Find the sample standard deviation, coefficient of variation, and range. (Round your standard deviation to four decimal places and your coefficient of variation to two decimal places.) Given the following: 1.9, 2.4, 5.7, 4.5, 1.9, 8.5, 3.9, s CV % range
For scenarios of statistical studies are given below. Decide which study uses a population parameter. And estimated 15% of Americans don't use the Internet. Lakeside family dentistry reported that six of the 15 patients who came in for regular cleaning one day had at least one cavity.