For a population with u =80 and 0 = 12, what is the z-score corresponding to x = 92?

Q: In a one-tail test, the p-value is found to be equal to 0.0026. If the test had been two-tailed, the…

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Q: A sample of n = 4 scores has a mean of x̅ = 40, with a sum of squares of SS = 48. What is the…

A: Given that n=4, x̅ = 40 and SS=48 Consider, the variance, s2=SSn-1=484-1=16

Q: . Claim: The mean IQ score of statistics professors is greater than 118. Sample data N=50, x=120,…

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Q: Two sample sizes of 15 and 10 were taken from a male and a female population, respectively. What is…

A: Here is given, two sample size, male is 15 and female is 10 from a population.

Q: For a two-talled test at 86.12% conndence with known population variance, the critical value of the…

A: Solution : Given : Confidence level = 86.12% and population variance is known. When population…

Q: An experiment compares two treatment conditions with a sample ofn = 20 in each treatment. If the…

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Q: If you obtained a test score of 78 on a test with an average test score of your class is 70, and SD…

A: Given, -x = 70 SD = 4 n = 36

Q: t = 3.2. What conclusion is appropriate at each of the fol- lowing significance levels?

A: here given  sample size  = n = 15 test statistic  = t  = 3.2 and here it is right tail test

Q: For a population with u= 40 and a =8, what is the z-score corresponding to X-34?

A: Z-score is -0.75

Q: An independent-measures study comparing two treatment conditions produces a t statistic with df =…

A: Provided information: Degrees of freedom = 18 Two samples are the same size.

Q: ased on information from a previous study, r1 = 38 people out of a random sample of n1 = 105 adult…

A: Introduction: Denote p1, p2 as the true population proportions of people who believe in…

Q: When you are going to use a two tail t test and the estimated power of your study is .20 (small),…

A: Given, Power = 0.20

Q: A developmental psychologist would like to determine how much impulsivity changes for children from…

A: The hypothesis test are used when we have to study a larger population by taking sample from the…

Q: A random sample of 130 recent donations at a certain blood bank reveals that 30 were type B blood.…

A: Here's, given that sample number is 130 and select 30. We will use one proportion z test.

Q: for a normal population mean, if a sample of size 25, sample mean= 5 and SD= 8.3. Then The 95%…

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Q: The average weight of a Coastal male Grizzly Bear is approximately normal with E(x); =795 pounds and…

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Q: What percentage of scores is between a z of ‐2 and a z of +2? Why is this important?

A: Use Empirical rule to solve it

Q: If you were assigned to develop an experiment to determine if adding specific insecticides will kill…

A: Qualitative research is the process of gathering and evaluating non-numerical data in order to…

Q: For a population with µ = 84 and σ = 4, what is the z-score corresponding to X = 80?

A: From the given information,   Mean = 84 Standard deviation = 4   The objective is to find the…

Q: -For a population with µu = 70 and o = 8, what is the z-score corresponding to X = 82?

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Q: For a population with µ = 40 and σ = 8, what is the z-score corresponding to X = 34?

A: Given  µ = 40 and σ = 8 , X=34

Q: In general, when people diet they typically lose 10 lbs. (?σ = 2). A random sample of 16 people on…

A: From the given information, the hypothesized mean is 10 lbs and the population standard deviation is…

Q: 2. To study the physical fitness for adult males in the 60-69 year age group, a sample of 28 people…

A: The given data set is: 60 62 62 65 65 65 68 70 72 75 75 76 79 80…

Q: If the z-score for a motel is 0.7, what is the price of a single room at the motel (in dollars)?

A: The formula for z score is, z=x-μσn In the formula, x is the individual score, μ is the mean, σ is…

Q: a one way factor anova produces ss between =120, ss within = 30 , and df = 2, 15. For this analysis,…

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Q: Given k = 4 and n =5, for a one-way (independent) ANOVA, find df for within treatment

A: In one way ANOVA k=4 means , there are four groups(treatment) whose means are to be compared n=5…

Q: For a population with μ = 80 and σ = 6,what is the z-score corresponding to X = 68?

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Q: he p-value for the above problem is < 0.0001. Which of the following is a correct conclusion? There…

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Q: For each of the following populations, would a score of x=85 be considered a central score (near the…

A: Given: μ = 75 and σ = 15 X = 85

Q: In general, when people diet they typically lose 10 lbs. (?σ = 2). A random sample of 16 people on…

A: It is given that the population mean is 10 lbs and the population standard deviation is 2.

Q: In a population with o = 8, a score of X = 44 corresponds to a z-score of z= -0.50. What is the…

A: Here, standard deviation is 8, X = 44, and z = –0.50.

Q: In a study with 11 participants, what would be your critical t score for a one-tailed test at the…

A: From the given information,   Sample size = 11   Degrees of Freedom:

Q: An individual is selected from a normal population with a of μ = 80 with σ= 20, and a treatment is…

A: It is given that the mean is 80 and the standard deviation is 20.

Q: A population with a mean of μ = 8 has SX = 40. How many scores are in the population?

A: It is given that, the population mean is µ = 6 and ΣX = 40.

Q: In a sample of n 15, a researcher finds a correlation of r =0.74 between IQ score and average grade.…

A: Given: n=15 r=0.74   We know that, rn-21-r2~ tn-2

Q: If a researcher reports a t-statistic with df = 18, how many individual subjects participated in the…

A: Given: Df = 18

Q: The test statistics of z = -1.27 is obtained when testing the claim that μ ≠ 35.4. Use the…

A: Given  z = -1.27 , μ ≠ 35.4(two tailed),α=0.05

Q: If a constant c is added to each xi in a sample, yielding y; = x; + c, how do the sample mean and…

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

Q: Two independent samples are examined and the following are found: n1 = 20, M1 = 30, SS1 = 400, n2 =…

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Q: If there are 4 scores per group and the t value is 2.34, what is the p value for a two-tailed test…

A: Note: Thank you for the question. Since it is given that, there are 4 scores per group we are…

Q: Two samples, each with n = 9 scores, produce an independent-measures t statistic of t = 2.00. If the…

A: Given information Two samples each with n = 9 scores D.O.F = 9 + 9 – 2 = 16 t = 2

Q: For the Venn diagram below, what would best describe the variance explained by x1 in a multiple…

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Q: To display the effects of the X variable on the Y variable in a bivariate table when the independent…

A: According to the provided information, the independent variable has been arranged in the columns.

Q: Assume that anxiety scores as measured by an anxiety assessment inventory are normally distributed…

A: Since there are 2 different questions, as per Bartleby rules, I am submitting 1st question. Please…

Q: The model below was fitted to a random sample of 30 families in order to explain household…

A: Obtain the value of the test statistic.   The value of the test statistic is obtained below as…

Q: For a population with μ =100 and σ = 20, what is the X value corresponding to z = -0.50?

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Q: In an SPSS analysis between Race and Prestige, which one would be the IV and which one would be the…

A: It is given that in a SPSS analysis, the variables used are Race and Prestige, and objective is to…

Q: The number of points held by a sample of the NHL's highest scores for both the eastern conference…

A: Given data

Q: at the variance of the treatment effect is o?. otain an expression for E [(ỹ1. – 72.)²] in terms of…

A: *Answer: