The number of bacterial colonies on a petri dish can has an average of 2.5 per cm2. Find the probability that a) in 1 cm2 there are no bacterial colonies  b) in 4 cm2 there are more than three bacterial colonies.

Q: The state test scores for 12 randomly selected high school seniors are shown on the right. Complete…

A: From the provided information, Sample size (n) = 12 The data values are as follow: 1424 1222…

Q: The correlation between this semester’s GPA and the previous semester’s GPA of an upper‑class…

A: Correlation is a measure that indicates the strength and direction of association between two…

Q: Use the sample data and confidence level given below to complete parts (a) through (d). A research…

A: From the given information, n=929 and x=582.

Q: The

A:

Q: Write a description of the random variable describing this survey (2) Write a probability…

A: It is given that the surveyed 50 people to rate how much they like their job.     Note: According to…

Q: 1.Calculate each value requested for the following set of scores.                         X  Y 1 4 3…

A: Given, X Y 1 4 3 6 5 1 7 4

Q: 7) Employment data at a software company reveal that 41% of employees have a computer science…

A: Given that 41% of employees have a computer science degree & 36% are women and half of the women…

Q: On a planet far far away from Earth, IQ of the ruling species is normally distributed with a mean of…

A: GivenMean(μ)=106standard deviation(σ)=18

Q: 5. Matthew will receive a series of payments at the beginning of each year for 20 years. The first…

A:

Q: The Internal Revenue Service is studying the category of charitable contributions. A sample of 34…

A: The question is about discrete probability distribution Given : Sample no. of returns selected from…

Q: 3. Assume that 60% of cars driven into Dublin at rush hour have 1 occupant, 20% have two occupants,…

A: Solution - Given that, X denote the number of occupants in a randomly selected car in Dublin at rush…

Q: Suppose X is a continuous random variable with a triangular distribution defined over 0 to 2.…

A:

Q: Analysis of variance compares the means of a response variable for several groups. ANOVA compares…

A: The question is about ANOVA Given : No. of groups = 7 Each group have no. of subjects = 16   To find…

Q: Here are the number of passes Brett Farve completed during each season. 302, 304, 308, 314, 318,…

A: Arrange the given data in ascending…

Q: dollars spent per visit by customers of a food store, the manager has selected a random sample of…

A: Given that  Sample size n =100 Sample mean=45.67 Sample standard deviation =12.30

Q: QUESTION 3 Match each statement as an example of classical probability, empirical probability, or…

A: Subjective probability is an educated guess. Classical probability assumes that the probability of…

Q: The refereed question A random sample of 12 shearing pins is taken in a study of the Rockwell…

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

Q: For a newly arrived consignment at Durban airport, what is the probability that a  randomly selected…

A: Let X denotes the delivery time. Given that X follows N(mean = 45, SD = 8), then Z = (X - mean)/SD…

Q: 29% of automobile drivers state that they have driven while under the influence of alcohol. Suppose…

A: Given that  n = 4 , p = 29% = 0.29 , q = 1 - p = 1 - 0.29 = 0.71 X ~ Binomial (n = 4 , p = 0.29) X =…

Q: A company has 500 employees of them 300 are male and 280 are married. Of the 300 males 190 are…

A: Given Information: A company has 500 employees Of which 300 are male and 280 are married. Of the 300…

Q: Create a Histogram manually or using Excel for the following average gas mileage: 24, 17, 14, 22,…

A: The given observations are: 24,17,14,22,25,26,38,42,24,12,28,19,32,21,35,28,21,31,18,19

Q: Describe the distribution of female contacts. Female: 160, 169, 152, 167, 164, 163, 160, 163, 169,…

A: Given information: The data is given related to female contacts, n=22 Find: Describe the…

Q: You work for a consumer advocate agency and want to find the mean repair cost of a washing machine.…

A: Given: n = 40 X = 100 s = 17.50 Formula Used: Confidence interval = X ± t*sn

Q: A local bank has three branch offices. The bank has a liberal sick leave policy, and the CEO was…

A: Given : Source df SS MS F Treatments 2 89.8333 44.9167 6.2056 Error 7 50.6667 7.2381…

Q: 19. It is well known, and scientifically documented, that yawning is contagious. When we see some-…

A:

Q: The effectiveness of a blood-pressure drug is being investigated. An experimenter finds that, on…

A: Given, mean is 39.5 and standard deviation is 9.1. Sample is 625. We will use one sample z…

Q: In a 2018 random survey of 160 American Democrats, 136 said that they support Medicare for al also…

A: We have given that n = 160x = 136Significance level (α) = 1 - 0.95 = 0.05

Q: Source Treatments Error Total a = b= C= d= e= df a 20 d SS 2.124 b e MS 0.708 C F 0.75

A: F=MST/MSE

Q: Assume that 26.3% of people have sleepwalked. Assume that in a random sample of 1503 adults, 435…

A: Solution-: Given: n=1503, P=0.263 We want to find, (a) P(435 or more of the 1503 adults have…

Q: 4. [Test for Independence) A research conducted by the Criminology Department of University of…

A: Given Information: Concern Alaminos city Dagupan city San Carlos city Urdaneta city Major 25 40…

Q: What is the three period moving average for 2002_Q2 (round off to two decimals).

A: From given data we have ;

Q: In a random sample of 81 audited estate tax returns, it was determined that the mean amount of…

A: Givensample size(n)=81Mean(x)=3454standard deviation(s)=2528confidence level=90%

Q: Assume a researcher wanted to know the probability that an individuals' systolic blood pressure…

A: GivenAssume a researcher wanted to know the probability that an individuals' systolic blood pressure…

Q: ACADEMIA DE STUDII ECONOMICE DIN MOLDOVA Departamentul "Econometrie şi Statistică Economică" a. IV…

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

Q: is the null hypothesis accepted or rejected

A: Solution: Given information: n= 12 Sample size  μ=150 Population mean x= 125 Sample mean s= 43…

Q: 2. Consider a Uniform Distribution U(10, 110) D. A classmate of yours claims that those answers…

A: Let us define a random variable X ~ U10,110 In the previous parts we were asked to find…

Q: What is the consequence of a Type II error?​ Question 40 options: ​Concluding that a…

A: null hypothesis is always a statement about no difference.  null hypothesis always contain equality…

Q: The average number of moves a person makes in his or her lifetime is 12 and the standard deviation…

A: The mean is 12 and standard deviation is 3.9.

Q: A professional basketball player typically attempts 8 free throws per game. Let X represent the…

A: Find the related table and calculate the varaince.

Q: 3.17 Scores on stats final: Below are final exam scores of 20 Introductory Statistics students. The…

A: Note: According to Bartleby guidelines expert solve only one question and maximum three subpart of…

Q: What is the consequence of a Type I error?​   Question 39 options:   ​Concluding that a treatment…

A: Solution-: What is the consequence of a Type I error? (a) Concluding that a treatment has an effect…

Q: Based on a survey, assume that 43% of consumers are comfortable having drones deliver their…

A: It is given that the 43% of consumers are comfortable having drones deliver their purchases.

Q: Find the probability using the normal distribution: P(1.73 <z<2.78). Use The Standard Normal…

A: z has standard normal distribution. where mean=0 and standard deviation=1 i.e. z~N0,1

Q: The average time to run the 5K fun run is 20 minutes and the standard deviation is 2.3 minutes. 9…

A: Given : Mean=20 SD=2.3 n=9 X~N ( 9, 2.3)

Q: Standardized tests for certain subjects, given to high school students, are scored on a scale of 1…

A: Mean is the measure of central tendency so we can calculate mean for both the distribution and find…

Q: Use the ALEKS calculator to solve the following problems. (a) Consider a t distribution with 17…

A:

Q: 5. A company has an inventory with a book value of $4,583,231, which includes 116 product lines and…

A: Probability Proportional-to-size sampling is also referred to as dollar-unit sampling. This is…

Q: Following a survey of a large group of goalkeepers, it is concluded that a goalkeeper stops the ball…

A:

Q: Suppose an epidemiologic investigation of people entering a STD clinic is performed.  It is found…

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

Q: The Head of production at Amiba private limited needed to examine the key determinants of company…

A: