a. Determine the 30th percentile. P30 Round to three decimal places if necessary b. Determine the 85th percentile.

Q: If the value of bo is negative, then the relationship: will not cause any impact to y values…

A: Regression line Y=b1x+bo  Where bo=intercept b1=slope

Q: The Math teacher gave the class a set of 12 review problems and told them that the midterm exam…

A: Given that, The Math teacher gave the class a set of 12 review problems and told them that the…

Q: (A) The value "df" stands for derivatives of freedom (B) These values give an idea how "warped"…

A: In Statistics, df represents the degrees of freedom.  So Statement (A) is not true.

Q: Find the mean and median of the class’s scores on this quiz. Round to two decimal places when needed

A: Given that  From histogram  X-axis takes X values and Y-axis takes Frequency  X Frequency = f 1…

Q: Suppose that 90% of all batteries from a supplier have acceptable voltages. A certain type of…

A: Given that 90% of all batteries from asupplier have acceptable voltages. n =10,P(X>=9) =?

Q: 00 subjects were studied and 120 of them expressed a preference for brand x, what percentage…

A: The 200 subjects were studied; n=200 120 of them expressed a preference for brand x; x=120

Q: The ponderal index is a measure of overall size similar to a body mass index. The ponderal index of…

A: Given that  Mean = 2.4 , Standard deviation = 0.45 n = 16  X̄ ~ Normal ( M = 2.4 , SD = 0.45/4…

Q: Consider the following hypothesis test: Ho: μ = 17 Ha: μ # 17 A sample of 50 provided a sample mean…

A: Given data Mean = 14.37 Sd = 6 N = 50 Hypothesis test H0:μ=17 Ha:μ≠ 17 (This is two tailed test )

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A: Given that: Column # # of hits 18 0 19 1 20 4 21 2 22 4 23 9 24 23 25 14 26 15…

Q: 1. Find the number of rearrangements of the word OCEANOGRAPHER subject to the following…

A: For arrangements,generally we use permutations concept. Here in order to find the number of…

Q: can anyone explain how the graph is correlated to the p-value and if there is a difference between…

A: In the given question, the relation of Error bar graphs with p-value have to be stated clearly.…

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A: We have to determine whether ir not the given graph is normal curve.

Q: A group of college students were surveyed to learn how many times they visited a dentist in the…

A: given data y p(y) y*p(y) 0 0.17 0 1 0.48 0.48 2 0.35 0.70     Σy*p(y) = 1.18

Q: Below are the areas under the normal curve within the given intervals. Identify and shade the region…

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

Q: Calculate the z-score for a raw score of 10, if the distribution's mean and standard deviation are 5…

A: Given X = 10 μ= 5 S= 4

Q: Please discuss the advantages and disadvantages between non-probability and probability sampling (in…

A: Given information: Describe the advantages and disadvantages of non-probability and probability…

Q: The CDF of a random variable is given below. 3 .26 X F(x) 1 .08 Determine: P(X≤4.5) 2 .15 4 .43 5…

A: Given that  Cumulative distribution function of X is  X 1 2 3 4 5 6 7 8 F(X) 0.08 0.15 0.26…

Q: The contents of urns, I, II and III are as follows: 1 white, 2 black and 3 red balls; 2 white, 1…

A:

Q: Find the standard deviation, o, for the binomial distribution which has the stated values of n and…

A: When X~Bin(n=21,p=0.2)

Q: Check here for instructional material to complete this problem. Some ordered pairs are listed in the…

A: The given data set is, x 0 5 8 10 12 13 14 y 9 5 3 1 3 5 9

Q: (a) Are the lives of these brands of batteries different? (b) Analyze the residuals from this…

A: Given data: Brand 1 Brand 2 Brand 3 100 76 108 96 80 100 92 75 96 96 84 98 92 82 100

Q: Interpret this t-test result: t(85) = 4.125; p-value = 0.009 O The t-test, t(85) = 4.125, is…

A: Answer: From the given data, t(85) =4.125 p value =0.009

Q: A newspaper story daims that more houses are purchased by singles now than singles 5 years ago. To…

A: Suppose p1, p2 are the true population proportions of houses purchased by singles now and singles 5…

Q: A home antigen test for the SARS-COV-2 infection has a sensitivity of 50% and specificity of 97%.…

A: given data sensitivity = 50 % specificity = 97%

Q: Which type of t-test is best for the following variables:(a) Test scores of Section A51 at start of…

A: The paired t test is also defined as dependent- t test. It is used to test the mean difference…

Q: Given the Rayleigh random variable with density function -(x-a)² b show that the mean E[X]=a+ πb 4…

A:

Q: 8.38 Sampling at a party. At a party there are 30 students over age 21 and 20 students under age 21.…

A: Given: Total number of students=30 chosen at random 3 of those over 21 chosen at random 2 of those…

Q: The table below shows the frequency distribution of the rainfall on 52 consecutive Sundays in a…

A:

Q: The weekly prices of one brand of frozen pizza over a five-month period in a large city are shown…

A: Given: n = 20 Formula Used: Q1 = n+14thterm Median Q2 = 2(n+1)4thterm Q3 = 3(n+1)4thterm Range =…

Q: How many samples can be obtained from the population if N=3, n= 2 ? if N=10, and n=3 ?"

A: It is given that Population size N = 3, 10 Sample size n = 2, 3

Q: Computerized Beverage Control Systems Beverage dispensing systems - Beverage portion control systems…

A: Given Information: Consider the given dataset:   AP(Original) Weight EP(Servable) Weight Round…

Q: Q7. ➤ Main difference between discrete and continuous variable is that discrete variables take…

A: Note: According to Bartleby guidelines we can solve maximum of three subparts in a question and rest…

Q: An introductory psychology class has 9 freshman males, 15 freshman females, 8 sophomore males, and…

A: In class 9 Freshman males 15 Freshman females 8 sophomore males 12 sophomore females Total…

Q: The following data give the weights (in pounds) lost by 15 members of a health club at the end of…

A: Given data of the weights(in pounds) ; 5,10,8,7,24,12,5,14,11,10,21,9,8,11,13 data in ascending…

Q: When reporting their results in a journal article, researchers typically do not provide readers with…

A: Given information: Claim: a main effect for depletion, indicating that depleted individuals…

Q: A professor wishes to develop a numerical method for giving grades. He intends to base the grade on…

A: For the given data Weighted average =?

Q: Assume that a procedure yields a binomial distribution with a trial repeated n times. Use the…

A: From the provided information, Number of trials (n) = 64 Number of successes (x) = 3 And probability…

Q: A pharmaceutical company wishes to evaluate the effect of the amount of starch on the hardness of…

A: Given Information: Consider the given dataset: Percentage of starch Hardness 2 4.3 4 4.8 4.6…

Q: The CDF of a random variable X is given the function F(x)= Cx² 3x² + x support of X is x=1,2,3,....…

A: Given that, the CDF of a random variable X is given the function                      F(x)=cx23x2+x…

Q: ////////////// Moonlight Beauty sells bottles of facial oil that have a mean volume of 30.00 ml and…

A: Let X denote the volume of the bottles. Given that X follows N(mean = 30, SD = 0.25), then Z = (X -…

Q: Ten coins are thrown simultaneously. Find the probability of getting at least seven heads.

A:

Q: Calculate the 5 number summary and the interquartile range of the following data: 20, 36, 78, 18,…

A: Given: n = 16 Formula Used: Q1 = n+14thterm Q2 = 2(n+1)4thterm Q3 = 3(n+1)4thterm IQR = Q3-Q1

Q: Examine the data below showing the weights (in pounds) of randomly selected checked bags for an…

A: Given data: International Domestic 39 29 54 36 46 33 39 34 69 38 47 37 48 33 28…

Q: A hospital would like to determine the mean length of stay for its mean of 6.2 days and a sample…

A: Given,sample size(n)=24mean(x¯)=6.2sample standard deviation(s)=1.4degrees of…

Q: Which type of t-test is best for the following variables:(a) Citizenship as Filipino and Alien (b)…

A: It is given that There are two variables : citizenship with categories Filipino and Alien. Life…

Q: Suppose you flip a fair coin infinitely many times. Let K₁ be the number of ti e pattern HHHH occurs…

A: From the given information,  A fair coin is flipped infinitely many times. For Fair coin,…

Q: In a graduate probability course, 7 students are enrolled. After midterm, the marks (out of 100)…

A: Given: n = 7 Formula Used: Q1 = n+14thterm Median Q2 = 2(n+1)4thterm Q3 = 3(n+1)4thterm Standard…

Q: 7. Let Xi denote a binary variable, and consider the regression Yi = β0 + β1Xi + ui. Let Y ̄0 denote…

A: Given: The Given Binary variable and consider the regression Yi=β0+β1Xi+ui The Observations with X=0…

Q: Which type of t-test is best for the following ariables:(a) Age measured by # of years old (b) Life…

A: We have to determine which type of t-test is applicable in given situation.

Q: (A) It is possible, but unlikely that one can measure the values for the entire population instead…

A: given the two statements: (A) It is possible but unlikely that one can measure the values for the…