Does how long young children remain at the lunch table help predict how much they eat? The table contains data on 20toddlers observed over several months at a nursery school. "Time" is the average number of minutes a child spent at thetable when lunch was served. "Calories* is the average number of calories the child consumed during lunch, calculatedfrom careful observation of what the child ate each day.21.4 30.8 37.7 33.5 32.8 39.5 22.8 34.1 33.9 43.8Calories 472 498 465 456 423 437 508 431 479 45442.4 43.1 29.2 31.3 28.6 32.9 30.6 35.1 33.0 43.7Calories 450 410 504 437 489 436 480 439 444 408TimeTimeTo access the complete data set, click the link for your preferred software format:Excel Minitab JMP SPSS TI R Mac-TXT PC-TXT CSV CrunchIt! Give a 95% confidence interval (lower, upper) to estimate how rapidly calories consumed changes as time at the tableincreases.(Enter your answers rounded to four decimal places.)lower :Cal/minCal/minupper :

In order to obtain the confidence interval, first perform regression analysis on the data. The…

Answered: Does how long young children remain at…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Terri Vogel, an amateur motorcycle racer, averages 129.41 seconds per 2.5-mile lap (in a 7 lap race) with a standard deviation of 2.25 seconds. The distribution of her race times is normally distributed. We are interested in one of her randomly selected laps. (Source: logbook of Terri Vogel) Let X be the number of seconds for a randomly selected lap. Round all answers to 4 decimal places where possible. Find the proportion of her laps that are completed between 129.57 and 130.63 seconds. (______)The fastest 3% of laps are under(______) seconds. The middle 40% of her laps are from(_____) seconds to(_______) seconds.
Joshua went to a doctor's appointment yesterday. He was weighed and the paperwork said that his weight put him in the 35th percentile for weight. This means that for all [gender] that were weighed at the same [age], [per]% of them weighed [compare] Joshua. Question options: [gender] boy [gender] girls [gender] all kids [age] day [age] week [age] age [per] 35 [per] 65 [compare] more than [compare] less than [compare] the same as
Aparticularly statistically curious clickbait website writer noticed that all the cool creative people he knows are also very anxious or neurotic. To test his hunch, he find 5 volunteer friendsand gives thema surveyon neuroticism (1-5 point scale) and a puzzle he found on the internet that supposedly is solved faster by more creative peopleand measures how long it takes each person to solve in seconds. The data areXneuroticism: 3.6, 1.5, 2.85, 2, 4.9Xcreativity: 32, 62, 123, 15, 4 A. Identify the appropriate statistical measure to use. B. Conduct the test. Make a decision about the null hypothesis, interpret your results and calculate effect size if applicable. At ?=.05,is the writer right about his hunch?
. Students may be classified as having a math dysfunction—and not have to take statistics—if they score below the 25th percentile on a diagnostic test. The m of the test is 75 and sX 10. Approximately what raw score is the cutoff score needed to avoid taking statistics?
What is the predicted percentage of people without health insurance in 1998? Round your result to two decimal places.
The percentage of scores falling below a z-score of .65
Exercise: The average life of a stove manufactured by GE is 15 years with a s.d. of 2.5 years. (d) Calculate the 96th percentile (e) What percentage of stoves will last between 16 and 20 years?
Take the following information about the theater industry. The theater seats are classified as either reserved or vacant. Among the reserved seats, 2 percent becomes vacant every period. Among the vacant seats, 8 percent become reserved periodically. What is the natural rate of seats that are vacant?
Calcium levels in people are normally distributed with a mean of 9.7 mgdL and a standard deviation of 0.5 mgdL . Individuals with calcium levels in the bottom 10% of the population are considered to have low calcium levels. Find the calcium level that is the borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place.
P-value?
IQ scores are distributed approximately normally, with a mean of 100 and SD of 15 a. What proportion of IQ are over 120? (area =?) b. What is the percentile when IQ is 120?

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