b) what is the correcr DF? option: 979, 973, 940, 934 c) which predictor is the most significan variable? option: smoke, height, age, gestation, weight, first_pregnancy d) which predictor is the least significan variable? option: smoke, height, age, gestation, weight, first_pregnancy

Q: Relative Cause Frequency % Pilot error % % % % Other human error Weather Mechanical problems…

A: The calculation done in R software,

Q: You just finished teaching your first PSYCH 248 lab section, and it’s time to calculate the grades.…

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have…

Q: PLEASE SHOW ALL WORK AND CALCULATIONS An article included data from a survey of 2857 hiring…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: What are the reasons why you should learn statistics? Do you think that learning statistics will…

A: There are few reasons you should learn statistics - 1. The first reason would be you effectively…

Q: What is the interquartile range (IQR) for the class height data?  Here is the five number summary…

A: Interquartile range IQR is the difference between third and first quartile, i.e, IQR=Q3-Q1, where Q3…

Q: Describe the basic characteristics that define an independent-measures, or a between subjects,…

A: Solution-: Describe the basic characteristics that define an independent-measures, or a between…

Q: A quantitative data set has 22 observations  when arranged in descending order what is the value of…

A: The quantitative data set has 22 observations.

Q: For this exercise, you must input thew following data: Variable name: Low-sugar diet; label:…

A:

Q: Bread Clarksburg Bakery is trying to predict how manyloaves of bread to bake. In the last 100 days,…

A: Note:   Thank you for the question. Since multiple subparts are posted, according to our policy, we…

Q: Calculate the 5 number summary and the interquartile range of the following data: 37, 35, 34, 58,…

A: Given data is37,35,34,58,30,62,45,12,49,6,32,27,25,18,42sample size(n)=15

Q: Suppose we want to estimate the annual high temperatures of the hottest major cities in the United…

A: Given data Here we have two variables City and Temperature City is a Categorical variable. Under…

Q: Describe a possible study that could be conducted to compare 2 groups means: what would the main…

A: One possible study to compare 2 group means: Let us test whether there is a difference in study…

Q: Describe about the difference between population means>

A: Assuming that we are comparing the difference between two population means which are defined as The…

Q: A software company is interested in improving customer satisfaction rate from the 65% currently…

A: Given,population proportion(P)=0.65sample size(n)=207no.of customers who were satisfied(x)=145

Q: Determine whether to use the formula for correlated comparisons or independent-groups comparisons?

A: Two samples are said to be independent if the sample values selected from one population are not…

Q: What is the decision rule for the t-test that the mean child mortality rate for countries in Eastern…

A: It is tested that the mean child mortality rate for countries in Eastern Europe is more than the…

Q: After rounding to two decimal places, I got that the population mean lies between: 60.08, and 69.92.…

A: It is given that the speeds of vehicles travelling on a highway follows normal distribution with…

Q: A local car manufacturing plant wanted to test the mean time to build a 2016 Chrysler 200. The plant…

A: Given data(x);247,228, 242, 224, 284 number of observation(n) = 5 x x2 247 61009 228 51984…

Q: sample of 303030 of their members about their running habits. Of the members surveyed, 999 said that…

A: It is given asFavourable cases, x = 9Sample size,, x = 9

Q: The sample data below represent the ages of 10 tandomly selected people. Find the following…

A: Step-by-step procedure to obtain descriptive statistics using Excel is given below: In Excel sheet,…

Q: Researchers examined the influence of a television program on children's aggressiveness. The number…

A: Given Solution:

Q: hy this is true. Hotel managers' personalities. Successful hotel man- agers must have personality…

A: Given  x¯=5.29μ=5.19n=148σ=0.78 a) Null Hypothesis: H0:μ=5.19 That is, the mean femininity score for…

Q: how do I find the test statistics and pvalue using excel or statcrunch? thank u

A: It is given that out of 308 orders, it is found that 37 are inaccurate. The sample proportion is…

Q: What Statistical test should I use to determine if 19 different Locations contribute to no-show up…

A: Null and alternative hypotheses: The investigator is specifically interested to test whether less…

Q: Which multiple comparison test provide better protection against misses or type II errors? Describe…

A: Here's the explanation is as follows; The multiple comparisons,  occurs when one considers a set of…

Q: Test Statistic p-value= =

A: The sample size for first population is 34, sample mean is 4.9 and sample standard deviation is 1.7.…

Q: When it comes to distracting subjects from the pain, is the neutral word different than the real…

A: The data is given in the summary table for neutral word and real swear word. let us take the random…

Q: Listed in the data table are amounts of strontium-90 (in millibecquerels, or mBq, per gram of…

A: The data of amount of strontium-90 in baby teeth obtained from the residents in two cities are…

Q: A study of seat belt users and nonusers yielded the randomly selected sample data summarized in the…

A: From the given information, Formula for Expected frequency:

Q: How Democratic is Georgia? Cou X +…

A:

Q: Determine the test statistic

A: Solution-: Given: μ0=60,n=15,s=,α=0.01 Given data:  80 88 48 75 52 32 66 74 73 54 72 78 104 95…

Q: Explain about two-tailed p-values.

A: Two tailed test: In two tailed test, the rejection lies in both sides. That is less than or greater…

Equations and Inequations

Equations and inequalities describe the relationship between two mathematical expressions.

Linear Functions

A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.