Select the two graphs whose data have the same standard deviation options 1-4 attached +88+10076112124-20-1o1020+6.-51728391-20-1o1o20 +69+955682108-20-1o1o2060718293104-20-101o20

Answered: Image /qna-images/answer/91026493-cf48-4bc5-9428-80f61199c6af.jpg

Answered: 나 88 100 76 112 124 -20 -1o 1o 20 -5 17…

Math

Statistics

나 88 100 76 112 124 -20 -1o 1o 20 -5 17 28 39 -20 -10 1o 20

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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Battery life is an important issue for many smartphone owners. Public health studies have examined "low-battery anxiety" and acute anxiety called nomophobia that results when a smartphone user's phone battery charge runs low and then dies.† Battery life between charges for the Samsung Galaxy S9 averages 31 hours when the primary use is talk time and 10 hours when the primary use is Internet applications. Because the mean hours for talk time usage is greater than the mean hours for Internet usage, the question was raised as to whether the variance in hours of usage is also greater when the primary use is talk time. Sample data showing battery life between charges for the two applications follows. 1)Test whether the variance is also greater when the primary use is talk time
Jina is a civil engineer working for the city of Indianapolis on a project to widen some of its downtown streets. One aspect that she has to consider is that, during the hot summer months, the noonday temperature of the asphalt on these streets can get extremely hot. For the project, she models these temperatures of the asphalt using a normal distribution with a mean of 119 °F and a standard deviation of 16 °F. Use this table or the ALEKS calculator to find the percentage of noonday temperatures of the asphalt between 127 °F and 131 F according to the model. For your intermediate computations, use four or more decimal places. Give your final answer to two decimal places (for example 98.23%). Explanation Check PrvacyI Accessibilty 2021 McGraw Hn Education Al Righes Reserved Terms of Uhe MacBook Air esc %23 & 3 4. 6. 8 R Y P Q 國 F G H K C V B N M alt alt option command option command
A student will spend 15 hours average each week in class. If the standard deviation is 2 hours, what percentage of students spend less than 12 hours in class?
The highway department is testing two types of reflecting paint for concrete bridge end pillars. The two kinds of paint are alike in every respect except that one is orange and the other is yellow. The orange paint is applied to 12 bridges, and the yellow paint is applied to 12 bridges. After a period of 1 year, reflectometer readings were made on all these bridge end pillars. (A higher reading means better visibility.) For the orange paint, the mean reflectometer reading was x1 = 9.4, with standard deviation s1 = 2.4. For the yellow paint the mean was x2 = 6.9, with standard deviation s2 = 2.2. Based on these data, can we conclude that the yellow paint has less visibility after 1 year? Use a 1% level of significance. What are we testing in this problem? single meandifference of proportions single proportiondifference of meanspaired difference (a) What is the level of significance?State the null and alternate hypotheses. H0: ?1 = ?2; H1: ?1 < ?2H0: ?1 = ?2; H1: ?1 ≠ ?2 H0:…
The first graph is to deceleration measurements. Second is to variance. Please help I need in an hour thankyou.
Database A contains 40 data items and is made up with an equal number of the values of 0 and 100 and has a mean of 50. Database B also has 40 entries made up equally of the values 49 and51 and also has a mean of 50. Which database will have the smaller value for its standard deviation?
In the dataset, the variable "diet_new" is a dichotomous variable, 0 = plant-based diet group, and 1 = non-plant-based diet group; and the variable "exercise" indicates the average exercise time per day.
A recent study revealed that the average weight of babies born in the United States is normally distributed with a mean of 7.5 pounds. This number is lower than recent years and so researchers are interested in determining what factors are associated with lower birth weights. One researcher decides to look at the age of the mother to determine if younger mothers have babies that are significantly heavier or lighter than average. To study this the researcher collects data from 87 babies who were born to mothers between the ages of 16 and 18. Only one baby was measured per mother. Twins and other multiple births were excluded. The average weight for these babies was 7.3 pounds with a standard deviation of .6 pounds Select the two-tailed null hypothesis for this statistical analysis. The babies of young mothers will not be significantly different than the weight of babies in the general population. The babies of young mothers will be significantly lighter than the…
Find the mean median mode by looking at the 3 graphs
Dr. Watts is a pediatrician. His group did some research on the sleep habits of children less than 24 months old. They found a weak negative correlation between a child’s age and the number of hours per day he or she slept. What does this mean? As a child’s age increases, the hours of sleep decreases in a nearly perfect pattern. As a child’s age increases, the hours of sleep increases in a nearly perfect pattern. As a child’s age increases, the hours of sleep decreases but the relationship is not perfect. As a child’s age increases, the hours of sleep increases but the relationship is not perfect.
Please round it to 4 decimal places and add the excel formulas as well.
suppose that a category of world-class runners are known to run a marathon (26 miles) in an average of 143 minutes with a standard deviation of 14 minutes. consider 49 of the races. Let x̅ = the average of the 49 races. I need help finding the median of the average running times. if someone could explain how to solve this problem that would be great