A. Calculate the standard deviation of this data set. Round your answer to two decimal places. B. Suppose that the psychologist asked the question again to an additional patient and that the patient's response was 1. Including this person in the sample, the new standard deviation will be which of the following? 13.6

Q: Determine the regression equation in y = ax + b form and write it below. x syntax error: this is not…

A: The slope is 0.83 and the intercept is 4.17.

Q: a. Sketch the density curve. b. Determine the likelihood a student spends between 11 and 17 minutes…

A:

Q: Let X and Y be two independent random variables. If the variance of X is 12 and the variance of Y is…

A: let x and y be two independent random variables if the variance of x is 12 and the variance of y is…

Q: The table below shows the number of state-registered automatic weapons and the murder rate for…

A: Regression equation Y = 0.85x +4.05

Q: The sample size n, probability of success p, and probability of failure q are given for a binomial…

A: n=16,p=0.92,q=0.08n = sample sizep = probability of successq = probability of failurebinomial…

Q: (a) Suppose that each of the first two components have lifetimes that are exponentially distributed…

A: (a)Given,each of the first two components have lifetimes that are exponentially distributed with…

Q: 4. A study was conducted to investigate the relationship between the size of a house (in square…

A: d.The explanatory variable is sqft (size of a house) and the response variable is the selling price…

Q: One study claimed that 86 % of college students identify themselves as procrastinators. A professor…

A: Answer Sample size [n] =139favorable cases [x] =110

Q: Thanks to an initiative to recruit top students, an administrator at a college claims that this…

A: Answer Mean =116Standard deviation =10sample size =19level of significance =0.05

Q: Three students, Linda, Tuan, and Javier, are given five laboratory rats each for a nutritional…

A: Linda's ratsTuan's ratsJavier's rats44.848.953.040.542.342.842.640.239.547.747.746.839.546.050.1

Q: A real estate office wants to make a survey in a certain town, which has 50,000 households, to…

A: A town has 50000 households.A survey was conducted to determine how far the head of household has to…

Q: A package of 6 bulbs are tested where the probability of an individual bulb is defective is 0.05.…

A: sample size(n)=6p=0.05x~Binomial(n=6,p=0.05)P(X=x)=

Q: Three experiments investigating the relation between need for cognitive closure and persuasion were…

A: Mean score= 175Standard deviation=7.55Margin of error =1.5Confidence level=99%

Q: 5. In 1979, a random sample of 200 families in a large city was found to spend an average of $85.44…

A: Sample size, Sample mean, Sample sd,

Q: Let JO, J1,..., J4 independent random variables according to the Ber (r₁) law, where i = 0, 1,...,…

A: In this problem, we are given five independent random variables, denoted as J0, J1, J2, J3, and J4.…

Q: -value in this problem, using the test statistic from part . is approximately 0. Make a conclusion…

A: b)Test statistic :Since sample sizes are large and we want to compare two population means,…

Q: Basic Computation: P(BIA) = 0.2: Rules of Probability Given P(A) = 0.8, P(B) = 0.3, (a) Compute P(A…

A: a)It is given that P(Ac) = 0.8, P(B) = 0.3 and P(B | A) = 0.2.

Q: Suppose you work for a company that manufactures electronics. The development analysts estimate that…

A: a. To compute the expected value, we need to multiply the potential profit or loss by their…

Q: Fifty-nine percent of U.S. adults think that civil rights for Black Americans have improved during…

A: It is given that the number of observations are independent with probability of success p = 59% =…

Q: Researchers have suggested that sleep apnoea (the tendency to occasionally stop breathing when…

A: The null hypothesis is the statement of equality. It is the statement about the population…

Q: nd b₂ is the slope coefficient estimator in a "reverse" regression that R² = b₁b₂ where R is the…

A:

Q: d. The p-value to test the null hypothesis that the slope on sqft is 0 (Ho : B₁ = 0), is…

A: d.The explanatory variable is sqft (size of a house) and the response variable is the selling price…

Q: Discuss the concepts of mutually exclusive events and independent events. List two examples of each…

A: To explain the concept of mutually exclusive events and independent events.

Q: Listed are 32 ages for Academy Award winning best actors in order from smallest to largest. 18; 18;…

A: Solution-:Given…

Q: Listed below are systolic blood pressure measurements (in mm Hg) obtained from the same woman. Find…

A: The data shows the systolic blood pressure for right arm and left arm.

Q: Which of the following statements are true?  There may be more than one correct statement; check all…

A: There are two box plot given : Box -plot consist 5 number summary : { Minimum, Q1, Q2, Q3, Maximum }…

Q: 34% of U.S. adults say they are more likely to make purchases during a sales tax holiday. You…

A: Probability that US adults says they are more likely to make purchases during sales tax holiday is…

Q: The systolic blood pressure (given in millimeters) of males has an approximately normal distribution…

A: a)Suppose the random variable x defines systolic blood pressure of males.

Q: 3. Below is a scatter plot that illustrates Sales vs Temperature. Sales $700 $600 $500 $400 $300…

A: The equation of the best-fit line is given as: . The objective is to draw the line of best fit in…

Q: tandard deviation, s, was 1.65 seconds. nit theorem, what approximate distribution does follow, and…

A:

Q: Suppose that the overall average of the average cycle time on 30 replications of a manufacturing…

A: Number of replications Sample mean Sample variance Sample standard deviation Confidence level is 95%…

Q: Listed are 29 ages for Academy Award winning best actors in order from smallest to largest. 18; 21;…

A: Solution-:Given…

Q: 4. A study was conducted to investigate the relationship between the size of a house (in square…

A: From the given info, it is clear that the dependent variable is selling price of house and the…

Q: 4. Compute for the weighted mean of the grades received by a college students enrolled in the first…

A: From the provided information, the weight and the respective obtained grades by the student is given…

Q: In a study of cell phone usage and brain hemispheric dominance, an Internet survey was e-mailed to…

A: sample size(n)=6988x=1292significance level()=0.01sample proportion()=

Q: imagine we have 4 observations. the values lie  0 - 25 (inclusive, and repeats are allowed).  What…

A: Solution-:We have 4 observations. the values lie  0 - 25 (inclusive, and repeats are allowed).  What…

Q: Archeologists have studied sizes of Egyptian skulls in an attempt to determine whether breeding…

A: The the data set :-   X 128.4138.3125.9132.2142.6135.3138.7129.3

Q: be outside the 95% confidence interval for this portfolio? nd of the 95% prediction interval is%.…

A:

Q: You may need to use the appropriate appendix table or technology to answer this question. A group…

A: Mean()=23858standard deviation()=5500

Q: nd the regression equation, letting the diameter be the predictor (x) variable. Find the best…

A: Diametercircumference7.423.224.376.34.213.221.968.87.122.34.112.921.266.6

Q: (b) Buying new tires and aligning the tires (c) Getting an A not only in psychology but also in…

A: In this exercise, we are given different pairs of events, and we need to determine how they are…

Q: If S is a sample space and A and B are events, when are A and B Mutually exclusive?  Exhaustive?

A: given thatIf S is a sample space and A and B are events, when are A and B then we have to define the…

Q: In the largest clinical trial ever conducted, 401,974 children were randomly assigned to two groups.…

A: If  and  are greater than 5, then it the requirement to test two population proportions is…

Q: Let limn→∞ Xn (w) E(supn Xn]) = ∞. = 0 for all we but limn→∞ E(X₁) ‡ 0. Prove that

A: The given problem involves a sequence of random variables, denoted by Xn, defined on a probability…

Q: Suppose our target population is very large. To each observational unit we have a two-level factor…

A:

Q: The Wall Street Journal Corporate Perceptions Study 2011 surveyed readers and asked how each rated…

A: Reputation of Company Quality of ManagementExcellentGoodFairExcellent 41255Good353510Fair241015

Q: A study was conducted to determine the proportion of people who dream in black and white instead of…

A: Assume that p1, p2 are the population proportion of people who dream in black and white, over the…

Q: A psychiatrist is interested in finding a 98% confidence interval for the tics per nour exhibited by…

A: a.Suppose µ is the population mean number of tics per hour exhibited by children with Tourette…

Q: A city government did a survey of working women, to see how they felt about juggling jobs and family…

A: Total number of respondents is 2800.Out of which 1678 respondents checked the item "stress is a…

Q: 3. Suppose a group of four cookies will be selected from a jar that has 12 chocolate-chip and 10…

A: