Question

Suppose the age that children learn to walk is normally distributed with mean 11 months and standard deviation of 2.3 months. 33 Randomly selected people were out to walk. Round to four decimal places

Find the IQR for the average first time walking age for groups of 33 people. 

1) Q1

2) Q3 

3) IQR 

Expert Answer

Want to see the step-by-step answer?

Check out a sample Q&A here.

Want to see this answer and more?

Experts are waiting 24/7 to provide step-by-step solutions in as fast as 30 minutes!*

*Response times may vary by subject and question complexity. Median response time is 34 minutes for paid subscribers and may be longer for promotional offers.
Tagged in
Math
Statistics

Advanced Topics in Statistics

Related Statistics Q&A

Find answers to questions asked by students like you.

Q: Answer C and D. Previously submitted and answer was wrong.

A: Given Information :  A company produces steel rods . The lengths of the steel rods are normally dist...

Q: In a large clinical trial, 396,553 children were randomly assigned to two groups. The treatment grou...

A: Given, α=0.10 a). To test the claim p1<p2 hypothesis test is better to be used. b). The p-value m...

Q: Last year, 54% of business owners gave a holiday gift to their employees. A survey of business owner...

A: Click to see the answer

Q: Please solve all parts

A: given information: a) x: people who paid to download the music. n=755 x=506 hence sample proportion ...

Q: Please answer C D and E

A: Given: n=40 μ=120000s=45000

Q: Discuss the reasons and situations in which a businessperson would want to use linear regression. Ho...

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a ti...

Q: problem attached. please help me with the full solutions, and matrixes in beginning.

A:   Null Hypothesis H0 Infant is fed and autism is independent Alternative Hypothesis Ha I...

Q: An insurance company surveyed 400 drivers and 320 claimed they always buckled their seat belts. You ...

A: Click to see the answer

Q: Statistics Question

A: Solution: State the hypotheses. Null hypothesis: H0: Home/visitor wins are independent. Alternative ...

Q: The daily water usage per person in Davao City is normally distributed with amean of 18 gallons and ...

A: Mean = 18 Standard deviation = 4

Q: Question (1).Among 157 African-American men ,the mean systolic blood pressure was 146 mm Hg with a s...

A: From the provided information, Sample size (n) = 157 Sample mean (x̅) = 146 Sample standard deviatio...

Q: Express the confidence interval 0.111<p<0.777 in the form pt E.

A: Given,   Lower bound = 0.111​ Upper bound = 0.777   Point estimate of population mean is,  

Q: John Believes that 50% of first-time brides in US are younger than than their grooms. He performs a ...

A: State the hypotheses. That is, there is no evidence to conclude that percentage is the different fr...

Q: A stick is one foot long. You break it at a point X (measured from the left end) chosen randomly uni...

A: I have solved first three parts (a), (b) and (c). Given  The random variable X is uniformly distribu...

Q: In continuous Probability Distributions such as Uniform, Normal, and Exponential is the range of x b...

A: The graph of a continuous probability distribution is a curve. Probability is represented by area un...

Q: According to the U.S. Census​ Bureau, the mean of the commute time to work for a resident of New Orl...

A: Mean = 25.8 Standard deviation = 4.8

Q: The amount of calories consumed by customers at the Chinese buffet is normally distributed with mean...

A: we are suppose to answer three sub parts .

Q: Upright vacuum cleaners have either a hard body type or a soft body type. Shown are the weights in p...

A: Null hypothesis:   H0: µ1=µ2.   That is, two means are equal.   Alternative hypothesis:   H1: µ1≠µ2....

Q: 3. Given the data table below answer the questions that follow. Price per unit  5 10 15 20 25 30 ...

A: Let X represents the Price per unit Y represents weekly profit in thousands   a. Find the best fit q...

Q: This question was stated as incomplete, but there is no more additional data that I could add. So pl...

A: Introduction: By convention, the symbol r is used to represent the correlation coefficient between p...

Q: The wait time at a drive-through fast-food restaurant has a standard deviation of 18.0 seconds. Use ...

A: Given that, The wait time at a drive-through fast-food restaurant has a standard deviation of 18.0 s...

Q: The average amount of money spent for lunch per person in the college cafeteria is $6.82 and the sta...

A: Given that μ=6.82σ=2.99n=9 Let X be the amount of money spent for lunch per person in the college ca...

Q: Given below are the sodium contents in milligrams for seven brands of hot dogs rated as “very good” ...

A: Click to see the answer

Q: To check whether the popularity of a political candidate is down from 65%, a random sample of 500 vo...

A: Click to see the answer

Q: Show work please thank you :) The mean rate for cable with internet from a sample of households was ...

A: Click to see the answer

Q: We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers be...

A: Click to see the answer

Q: D. What would be the slope and y-intercept for a regression line based on these data? E. What wouıld...

A:   D. Regression: The regression analysis is conducted here by using EXCEL. The software procedure is...

Q: Nationally, patients who go to the emergency room wait an average of 4 hours to be admitted into the...

A:   a. Since the population standard deviation is unknown, the appropriate test is one sample t-test. ...

Q: The average price of a college math textbook is $162 and the standard deviation is $25. Suppose that...

A: Given that  μ=162σ=25n=11 1. Third quartile for the average textbook price for this sample size:    ...

Q: Dental anxiety study. Refer to the BMC Oral Health (Vol. 9, 2009) study of adults who completed the ...

A: From the provided information, Sample size (n) = 15 Sample mean (x̅) = 10.7 Sample standard deviatio...

Q: Consider the following pairs of m -1 7 y 0 1 8 a. Construct a scatterplot of these data. p. What doe...

A: x y 5 4 3 3 -1 0 2 1 7 8 6 5 4 3 SSxx=43.4286, SSxy=39.8571, y¯=3.4286, x¯=3.7143  

Q: Conduct the hypothesis test and provide the test statistic and the critical value, and state the con...

A: Given: N=100 Categories=4 α=0.025  

Q: A data set includes weights of garbage discarded in one week from 62 different households. The paire...

A: Correlation coefficient measures the strength and direction of the linear relationship between two v...

Q: Five hundred fourteen (514) homes in a certain southern California community are randomly surveyed t...

A: Given information No of homes meeting the minimum earthquake preparedness x = 171 Total homes survey...

Q: As a general guideline, the research hypothesis should be stated as the O null hypothesis. tentative...

A: Null and alternative hypotheses: Null hypothesis: Null hypothesis is a statement which is tested for...

Q: You are the operations manager for an airline and you are considering a higher fare level four passe...

A: It is given that margin of error (E) is 0.04 and the confidence level is 99%.

Q: 

A: Hey, since there are multiple subparts posted, we will answer first three subparts. If you want any ...

Q: Two samples are taken with the following numbers of successes and sample sizes r 1 =20 r 2 =24 n 1 =...

A: Given that p^1=r1n1=2051=0.3922p^2=r2n2=2489=0.2697p^=r1+r2n1+n2=20+2451+89=0.3143 Confidence level ...

Q: The executives at Sandbachian, Inc., has recently solved their widget crisis, have another problem w...

A: Click to see the answer

Q: What is the answer?

A: Given information a) n = 350; p̂ = 0.30, α = 0.01

Q: The accompanying table shows results of challenged referee calls in a major tennis tournament. Use a...

A: State the hypotheses. Null hypothesis: Alternative hypothesis: Correct option: Option A

Q: Listed below are student evaluation ratings of courses, where a rating of 5 is for "excellent." The ...

A: (a)   Obtain the 90% confidence interval for the population mean μ.   The 90% confidence interval fo...

Q: A​ gender-selection technique is designed to increase the likelihood that a baby will be a girl. In ...

A: Given information 911 births consist of 469 baby girls and 442 boys Let X denotes the number of girl...

Q: Find the slope m for the least-squares regression line. x y 5 8 9 10 11 13 17 19

A: Click to see the answer

Q: The manager of a laptop computer dealership is considering a new bonus plan in order to increase sal...

A: The target is to increase sales. So , we will need to test increase in sales versus it remains the s...