A researcher reports an F-ratio with df = 2, 18 from an independent measures research study. Based on the df values, how many treatments were compared in the study, and what was the total number of subjects participating in the study? Number of Treatments _____ Number of Subjects _____

Q: Twenty-two different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given: Sample size (n) = 22 Here, the test is conducted to check whether the population mean is…

Q: is thought that prehistoric Indians did not take their best tools, pottery, and household items when…

A: Provided information is,  It is thought that prehistoric Indians did not take their best tools,…

Q: Q. 1 The discharge analysis report of Anywhere Health Care Facility shows 1752 discharges (including…

A: Note: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The formula of the correlation coefficient is:

Q: 7. A researcher reports an F-ratio with df = 3, 24 from flos an independent-measures research study.…

A: A researcher reports an F-ratio with df = 3, 24 from an independent-measures research study. Given…

Q: d.) Is the model adequate for estimating the annual health care expenditure? Motivate your answer…

A: Given the model as  Ey=β0+β1x1+β2x2+β3x3+β4x4+β5x5 Where y=Annual health care expenditures (Dollars)…

Q: fx) Area = 0.70 What percentile does x represent?

A: The percentile indicates the percentage of data that falls below a particular value. The 50th…

Q: c) the gestation time differs from the mean by more than 3 weeks. d) of 100 boys born in upstate NY…

A: Given, for males born in upstate NY, the gestation times are normally distributed with a mean of 39…

Q: Ex. X = 400 Y = 700 Exr = 15, 000 Σε X2 = 16, 229 y2 = 50, 000

A:

Q: Sulfur compounds cause "off-odors" in wine, so winemakers want to know the odor threshold, the…

A: (a) A sample of 10 students is taken in the study. There is no information of how the sample of…

Q: Fourteen different video games showing drug use were observed. The duration times of drug use ​(in…

A: Given, n=14 df denotes Degree of Freedom.

Q: The results for a blood test for a certain disease are shown in the tab below. Let D represent…

A: here True positive = 290 False negative = 3219

Q: A psychologist is studying human emotional response time to certain images.  They show various…

A: Given that the reaction time is considered "normal" if it is under 216 milliseconds. From the given…

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A: Concept of p-value: The p-value in hypothesis testing is the probability of obtaining a test…

Q: Researcher reports an F-ratio with df = 2, 27 from an independent-measures research study. How many…

A: Given, Researcher reports an F-ratio with df = 2, 27 from an independent-measures research study.

Q: Environmental Health Much discussion has taken place concerning possible health hazards from…

A: given that,possible chances (x)=7size(n)=525success rate ( p )= x/n = 0.0133point of estimate =…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: From the provided information, x y 5.75 31 6.25 26 6.75 38 7.75 74…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A:

Q: Q. 4 In the year 2020, City A had a population of 200,000. 300 existing cases of colon cancer were…

A: Total population in city A (N)=200,000 Number of existing cases of colon cancer = 300 Number of…

Q: Sulfur compounds cause "off‑odors" in wine, so winemakers want to know the odor threshold, the…

A: Given data set is,30, 30, 42, 35, 22, 33, 31, 29, 19, 23Sample size (n) = 10

Q: Almost all medical schools in the United States require students to take the Medical College…

A: Given data, μ=500σ=10.6

Q: 22. A researcher reports an F-ratio with df = 3/36 for an independent-measures experiment. How many…

A: # Given: degree of freedom from F ratio  df=3/36 for an independent measures experiment how many…

Q: Household wastewater quality at Tabuan Jaya was compared during low, medium and high flow. Is there…

A: H0:μLow=μMedium=μHigh Vs H1: At least one of them is significantly different from others.

Q: A researcher reports an F-ratio with df = 4, 62 from an independent-measures research study. A.)…

A: Degrees of freedom for the F-ratio can be computed using the formulae: df1=k-1 df2=n-k Where, 'k'…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The method of least squares  is a standard approach in regression analysis to approximate the…

Q: X~N(12,3) Find the 87.7 th percentile X.

A: Obtain the value of the 87.7th percentile X. The value of the 87.7th percentile X is obtained below…

Q: How much noisier are streets where cars travel faster? An article reports noise levels in decibels…

A: The standard error estimate, s, is given by,

Q: Using a one-way ANOVA, a researchers reports an F ratio with df = 1, 38. This researcher could have…

A: Given : Using a one-way ANOVA, a researchers reports an F ratio with df = 1, 38.

Q: A researcher reports an F-ratio with df=4,98 for an independent-measures research study. How many…

A: A researcher reports an F-ratio with df=4,98 for an independent-measures research study.

Q: e dotplot shows the body mass index (BMI) for 133 randomly surveyed people from a tain country. A…

A:

Q: A researcher reports an F-ratio with df= 3,27 for an indenpendant measure research study. a. How…

A: a. The given degrees of freedom are 3,27. The number of treatment conditions were compared in the…

Q: A medical social worker is interested in examining the relationship between patients who receive…

A:

Q: What are percentiles useful for  a. showing frequency b.comparing values  c. showing…

A: Introduction: It is requires to identify the option that describes the purpose of percentiles.

Q: D. 3rd Quartile E. 7th Decile F. 65th Percentile also this

A: Median is the middle value that seperates the data into two equal halves. Percentile is the measure…

Q: FICO scores range in value from 300 to 850, with a higher score indicating a more creditworthy…

A: Left skewed distribution, mean is to the left of median i.e. Mean is less than Median. For a skewed…

Q: Can pleasant aromas help a student learn better? Hirsch and Johnston, of the Smell & Taste Treatment…

A: Data are given, a) Here we used paired t-test because here we checking effects of wearing a…

Q: A researcher is interested in hamster wheel-running activity during the summer versus the winter.…

A: We have to find  degree of freedom.

Q: 1. Clearly indicate why a paired t-test should be used in this analysis. Then produce the…

A: 1. The paired t test is used when the subjects in the study are measured twice, that is the same…

Q: It is thought that prehistoric Indians did not take their best tools, pottery, and household items…

A: The table shows the variables of x and y.

Q: A researcher reports an F-ratio with df = 3, 56 from an independent-measures research study.  How…

A: An F-ratio is determined using sum of square for between groups with degree of freedom of between…

Q: person waited before being served was noted and the results are shown in the charts below.  How…

A: Given that:

Q: The results of an independent-measures study produce a t statistic with df = 36. How many…

A: Provided information: According to the question, given that the results of an independent-measures…

Q: ) A manufacturer claims that lifespans for their copy machines (in months) can be described by a…

A: u = 42 sigma = 7

Q: (a) What proportion of students taking the MCAT had a score over 518518 ? Compute the proportion and…

A: Let , X→N(μ=500 , σ=10.6) Our aim is to find the following :  (a) What proportion of students…

Q: Calculate the z-score for each subject: Chemistry Math ELA

A: a) For chemistry  Given : Test value =x= 85

Q: 6. A researcher reports an F-ratio with df. = 30 for an independent-measures %3D between and df %3D…

A: Given, A researcher reports an F-ratio with dfbetween 2 and df within =20 from an…

Q: ixd s 67 Dr 5. Find the percentage of data points that lie above z 1.03. Draw a picture to support…

A: The percentage of data points that lie above Z= 1.03.The P-value is developed using MINITAB:Choose…

Q: z value that corresponds to the 81 percentile.

A: Given Random Variable X~N(0,1) we have to find a Z value corresponding to the 81 Percentile that is…

Q: A lab chemist would like to know if 2 methods produce the exact measurements. To do this, the…

A: There are two types of variables, they are independent and dependent variables. Independent…

Q: You are conducting a study to see if the proportion of women over 40 who regularly have mammograms…

A: p-value is the probability of observing more extreme results under null hypothesis.  Test statistic…