A researcher want to know if there is a relationship between sleep and anxiety.  The researcher randomly selected n = 5 participants and asked each to rate their sleep quality and anxiety level on a scale of 1 to 5.  The data are below: Sleep X  Anxiety Y 2 2 3 3 2 2 4 2 5 2 Calculate Pearson's r

Q: A researcher wanted to know the relationship between sales per 24h in a department store, the amount…

A: Correlation shows the association between the two numerical variable. It shows the relationship…

Q: 2. A developmental psychologist would like to examine the difference in verbal skills for 6-year-old…

A: Since, You have asked multiple questions, we will solve the first question for you. If you want any…

Q: The accompanying data were read from a plot (and are a subset of the complete data set) given in an…

A: Given information, The  data of mean responses time of individuals with CHI and its control group…

Q: What is your conclusion about the correlation between rainfall that day and mean age of customers?

A: Given that, Dependent variable = sales per 24h in a department store Independent variables = the…

Q: This is the step 1. The table shows the number of hours spend by 30 students in studing and their…

A: The data of 30 students study time in hours and their exam scores are given as:   Number of hours…

Q: 4. Refer to Table 6 and answer parts a-d below. a. Write out each of the bivariable associations…

A:

Q: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back…

A: The hypotheses are given below: Null hypothesis: H0:µd=0 Alternative hypothesis: H1:µd≠0…

Q: een grades achieved and instructor. Can the chair infer that the grade achieved was independent of…

A: The recorded student gradesacross the sections is given in the following table   Grade Achieved…

Q: Gay/lesbian Bisexual Heterosexual/Straight MG/L = 16 MBi = 17 MH/S = 22   Source SS df MS…

A: SSorientation=300,SSerror=2961There are three treatments and each treatment has 22…

Q: What is the independent variable?

A: the independent variable: (Explanatory variable) An independent variable is exactly what it sounds…

Q: Dlivia works at a company that creates mobile phones. She wanted to estimate the mean amount of tim…

A: Given data,n=6df=n-1=5x=9s=2.07α=0.10t-critical value is tc=2.015

Q: 109. Suppose a study was done to replicate the results of the 2003 study by Wansink et al. in…

A: Anova is the measure of a parametric test. It is used to compare the average significance of three…

Q: (Please show all work on how you got this so I may learn from it and check my answers.) A researcher…

A: Given:Sample 1 (No perfume): 4, 5, 3, 5, 4, 3, 5, 3 Sample 2 (Small amount of perfume): 6, 3, 5, 4,…

Q: The director of student services at Oxnard College is interested in whether women are just as likely…

A:

Q: Question 4 A research team wants to investigate the usefulness of relaxation training for reducing…

A: The provided sample means are shown below: Xˉ1=30\bar X_1 = 30  Xˉ2=26\bar X_2 = 26   Also, the…

Q: Gay/lesbian Bisexual Heterosexual/Straight MG/L = 16 MBi = 17 MH/S = 22   Source SS df MS…

A: SStreatment=300,SSerror=2961There are three treatments and each treatment has 22…

Q: (Please show all work on how you got this so I may learn from it and check my answers.) A researcher…

A: In the study investigating the impact of perfume on perceived attractiveness, the researcher…

Q: As a new type of environmentally friendly, natural air freshner is being developed, it is tested to…

A: Given:Temperature 1Temperature 2Humidity 1353525312637Humidity 2282322192118

Q: This was a question on my homework and I would like to know if I answered it correctly. Thank you…

A: Odds (O):The “odds” of the occurrence of an event is the ratio of the number of occurrences of the…

Q: he dietician is working with a random sample of 50 patients who are dieting. He puts them on a…

A: The dietician is working with a random sample of 50 patients who are dieting.

Q: following summary to answe

A: test statistic Z test statistic for two sample mean

Q: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back…

A: Introduction: Denote μ1, μ2 as the true mean lower back pain levels before and after wearing the…

Q: Please help me answer questions from pictures with the following information below: A random sample…

A: Given data: Sample 1: 99 91 119 130 93 123 112 93 125 95 125 117 97 122 127 88 Sample 2: 94 109 99…

Q: A researcher would like to evaluate the effectiveness of a pain-relief patch designed for lower back…

A: answer is explained below-

Q: What is the F critical value?

A: Here the the groups are given as,Gay/lesbian,Bisexual or Heterosexual/straight.Let  are the…

Q: A researcher want to know if there is a relationship between sleep and anxiety.  The researcher…

A: For random variables X and Y the value of SP is, SP = Σ (x – x̅)(y – ȳ), where x̅ is the mean of X…

Q: A clinical psychologist is investigating the relationship between sleep and feelings of anxiety. For…

A: Given:Mx=6, SSx=16My=8, SSy=64 and SP=-20 Let x denotes the Hours of sleep and y denotes the Anxiety…

Q: A researcher would like to determine if relaxation training will affect the number of headaches for…

A: Hello. Since your question has multiple sub-parts, we will solve first three sub-parts for you. If…

Q: Katie is studying aggression among adolescent girls. She believes that there is a relationship…

A: No Interaction A1^2 Low Interaction A2^2 Moderate Interaction A3^2 High Interaction A4^2   4 16…

Q: Researchers were interested in assessing whether stress levels are different at the beginning of the…

A: Objective of this question is that find the degree of freedom=df=?

Q: The regression equation is y=+x. (Round to one decimal place as needed.) Given that the systolic…

A: from given date first find mean; Mean of X =MX=∑Xn=4555=91 Mean of Y =MY=∑Xn=7775=155.4

Q: A clinical psychologist is investigating the relationship between sleep and feelings of anxiety. For…

A: The sum of squares of in "Hours of sleep" is SSx=16  The sum of squares of in "Anxiety scores" is…

Q: for a population with μ=62 and ?=12, find the X value that corresponds to each of the following z…

A: Given Information: u = 62  s = 12

Q: A set of n = 10 pairs of scores has X = 20, Y = 30, and XY = 74. What is the value of SP for these…

A: The provided information is as follows:The total number of observations is .

Q: An experiment was conducted to compare anxiety levels among children induced between looking at real…

A: The given data is, Real snakes pictures snakes 20 15 25 20 30 35 30 35 25 20 35 32…

Q: (Please show all work on how you got this so I may learn from it and check my answers.) A researcher…

A: Calculation for how much of the variance in attractiveness ratings (the dependent variable, DV)Step…

Q: Roy ‘s Texaco wants to keep the price of its unleaded gasoline competitive with that of other…

A:

Q: and after the walk she had them rate their mood on a 5-pt Likert scale from1- very bad mood to 5-…

A: Given The data is as follows Mood before Mood after 4 5 3 3 1 4 5 5 1 5 2 4 3 2…

Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calculated is present here only.