A standard 8 sided die (with sides 1,2...8) is rolled 5 times. How many ways can it be done so that a 7 was rolled exactly 2 times or the first was 4?

Q: Sally has a brand new 2016 Corvette and Dan has a 1990 Malibu. Who should con Saly Dan Both of them…

A:

Q: Find a reference to a poll or study in recent news (last few weeks ideally, earlier if you must.)…

A:

Q: Does it take less time for seeds to germinate if they are near rock music that is continuously…

A: The number of seeds were exposed to rock music, The number of seeds were exposed to classical music,…

Q: Under what condition is the median a better measure of location than the mean?

A: To, answer the condition when the median is better than the mean.Mean - It is a type of central…

Q: Find the mean, the standard deviation and the Z scores corresponding to the minimum and maximum…

A: 2.3, 1.0, 2.1, 6.5, 2.8, 7.8, 1.7, 2.9, 4.4, 5.1, 2.0

Q: You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe…

A: σ=71.9,E=3,CI=98%=0.98α=1−CI=1−0.98=0.02

Q: A random sample of  17  health maintenance organizations (HMOs) was selected. For each HMO, the…

A: Enter the data in Excel as follows:The confidence limit is 90%.In this case, the parameter of…

Q: An oil company purchased an option on land in Alaska. Preliminary geologic studies assigned the…

A: Given,P(high-quality oil) = 0.50P(medium-quality oil) = 0.20P(no oil) = 0.30Using formulas,

Q: Suppose the probability of contracting a certain disease is 1 in 69 for a new case in a given year.…

A: P( new case) ==0.0145q=1-p=1-0.0145=0.9855n=110 people

Q: According to recent​ study, 173 of 489 CEOs in a certain country are extremely concerned about…

A: Here, Sample size=n=489Let x and p be the number and proportion, respectively of  CEOs in the…

Q: An appliance manufacturer wants to contract with a repair shop to handle authorized repairs in…

A:

Q: Using the regression table I created, how should I perform a T-test for the predictors and assuming…

A: It is required to describe the procedure of performing t-tests for the predictors, assuming that the…

Q: refer to science, technology, engineering, and mathematics as the STEM disciplines. A research group…

A: Population proportion p=0.27Sample size n=130

Q: Sample 1: n₁ = 6, x₁ = 27.7, s₁ = 9.44 Sample 2: m₂ = 19, x₂ = 27.2, s₂ = 8.4 (a) The degree of…

A: Sample 1:Sample size Sample mean Sample standard deviation Sample 2:Sample size Sample mean Sample…

Q: Which of the following would result from increasing the significance level when performing a null…

A: Significance level is increasedAnswer and expaination is provided below

Q: Future scientists: Education professionals refer to science, technology, engineering, and…

A: Population proportion p=0.27Sample size n=130

Q: A random sample of 130130 observations produced a mean of ?=30.2x¯=30.2 from a population with a…

A: It is given that x̄ = 30.2σ = 4.49n = 130

Q: 4. A local florist says that 85% of all flowers sold for Valentine's Day are roses. Consider a…

A: probability of florist says that flowers sold for valentine's day are roses(p)=0.85sample…

Q: Students in a statistics class took their first test. The following are the scores they earned. Fill…

A: The data are given on the scores earned by students.Given that,Sample size

Q: A Type Error is when you choose to accept the null hypothesis when the null hypothesis is actually…

A: The types of error are the followingType I errorType II errorNull hypothesis-The null hypothesis is…

Q: 3. Notation In general, what do the symbols and represent? What are the values of μ and o for…

A: Mean()=100Standard deviation()=15sample size(n)=36

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 2.1…

A: Mean()=2.1 yearsStandard deviation()=0.7 years

Q: A distribution of values is normal with a mean of 90 and a standard deviation of 3. Find the…

A:

Q: Find the range, mean, variance and standard deviation of the given data set.  Pregancy Durations:…

A: Dataxx2277767292918468129587025280784002687182427877284291846812777672928279524279778412968761628581…

Q: A distribution of values is normal with a mean of 13.8 and a standard deviation of 93.3. Find P21,…

A:

Q: Advertising Year Expenditure Membership Year $ (000) Subscriptions 2013 51 62 2014 58 68…

A: yearExpenditureSubscription2013516220145868201562662016656620176867201876722019777320207872202178782…

Q: The Chi-square Goodness-of-Fit Test and the Chi-square Test of Independence are both:     A.…

A: We need to identify that the chi square goodness of fit test and the Chi-square Test of Independence…

Q: A basketball coach believes that the variance of the heights of adult male basketball players is…

A: The sample variance and sample size of heights for basketball players are: & The sample variance…

Q: identify the test statistic - (Round to two decimal places as needed.) identify the P-value P-value…

A: alpha = 0.05difference = d = april weights - September weightsthere are total 9 samples so n=9…

Q: The owner of a coffee shop has found that the amount spent by customers at the shop is normally…

A: The owner of a coffee shop has found that the amount spent by customers at the shop is normally…

Q: In a binomial experiement, what does it mean to say that each trial is independent of the other…

A: An experiment involves manipulating one or more variables and observing the effect of the…

Q: Claim: Fewer than 9.6% of homes have only a landline telephone and no wireless phone. Sample data: A…

A: Let p is the parameters that represent the proportion of homes that have only a landline telephone…

Q: You are considering the risk-return profile of two mutual funds for investment. The relatively risky…

A: for relatively risky fund For less risky fund

Q: The partially completed analysis of variance table given below is taken from the article, "Power and…

A: We have given the following ANOVA tableSource of Variation SSdfMSFPower 0.24001Knowledge…

Q: What does the speaker tell you about the process?

A: Given that USL = 1.01, LSL = 0.99 and =0.003.The cpk index was found to be 0.889.

Q: Joan's Nursery specializes in custom-designed landscaping for residential areas. The estimated labor…

A: Data: 1.6,1.5,2.6,2.3,2.3,2.3,2.6,3,1.5,2.3Note:- According to the Bartleby guidelines experts solve…

Q: why is the DV female drosophila Do you use a z or test for this problem?

A: For male μ=38.9,σ=population standard deviations=12,  n=size=24, X¯=62.5

Q: Are Republicans just as likely as Democrats to display the American flag in front of their residence…

A: The sampled number of Republicans, n1=655.The sampled number of Republicans, who displayed the flag…

Q: Consider the following set of dependent and independent variables. Use this data 10 12 15 17 19 23…

A: yx1x21001812312153141710101963231392517831186

Q: 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 data Q Based on the boxplot above, identify the 5 number…

A: Boxplot in the given question.

Q: suppose that a factory produces light bulbs and the percentage of defective lightbulbs is 3.5%. if a…

A: Probability of  defective lightbulbs(p)=0.035sample ssize(n)=550Let "x" be the no. of defective…

Q: In a recent year, the mean weight of newborn boys in a certain country was  7.5 pounds. A doctor…

A: In a recent year, the mean weight of newborn boys in a certain country was 7.5 pounds.

Q: 9.4.5 In a breeding experiment, white chickens with small combs were mated and produced 190…

A: The given frequency distribution of the type of chickens with the defined attributes as…

Q: 75.9 72.7 73.8 74.2 78.1 75.4 76.3 75.3 76.2 74.9 78.0 75.1 76.8 If necessary, round all…

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

Q: Female 17 3 8 Total 31 9 12 28 52 If one student is chosen at random, Find the probability that the…

A: It is given that the data in cross tabulation form represents the test to a group of students, the…

Q: Discuss the difference between the 95% and 99% confidence levels. What are the corresponding alpha…

A: We have to tell the difference between 95% and 99% confidence level We have to calculate…

Q: In 2018, Pennsylvania was one of 11 states that did not collect race data during traffic stops.…

A: n=8 no of complaints:275 ,67 , 35 , 1, 21 ,35 ,4,15To determine 90% CI we have

Q: Sample 1: n₁ = 19, x₁ = 19, s₁ = 2. Sample 2: n₂ = 27, x₂ = 16, s₂ = 0.5. (a) The test statistic is…

A: There are two independent samples which are Sample 1 and Sample 2.We have to test whether the two…

Q: Using the regression table I created, how should I perform the F-Test at 0.05 level of significance…

A: Given that: n=61 observationk= 2 independent variables The multiple regression output table is…

Q: An engineer wants to determine how the weight of a car, x, affects gas mileage. y. The following…

A: CarABCDEWeight(pounds),x25502900349536504230Mile per Gallon,y26.625.12519.115.9Explanatory variable…