X         0         1          2         3        4          5 P(X)    0.4    0.25      0.15     0.08     0.02    ?? 1 What is the probability they will take 5 classes? 2.What is the probability they will take at least one class? 3. What is the probability a student will take 2 or 3 classes in a semester? 4.What is the expected number of classes a student will take in a given semester.

Q: A college claims that the proportion, p, of students who commute more than fifteen miles to school…

A: GIVEN DATA,claim :p <0.25n=260x=62p^=xn=62260=0.2385one -tailed test

Q: 2. A shipment of 30 computers has arrived at a store. The manufacturer of the computers called the…

A: given data 8 - defective22-working___________30 total computers select 5 at random P(atleast 2…

Q: researcher performs atomic absorption measurements of 5 standard solutions on. A reference material…

A:

Q: An office building has two fire detectors.  The probability is 0.15 that any fire detector of this…

A:

Q: 8. The p-value in hypothesis testing represents which of the following: Please select the best…

A: According to the given information in this question We need to identify the correct option

Q: Let π represent the percentage of all male students who would receive a grade of B on this test. Use…

A: It is given that the data in cross-tabulation form. Total students i.e, sample size n = 48…

Q: In the Chi-Square goodness of fit test, the sum of expected frequencies must be equal to A.…

A: According to the given information in this question We need to identify the correct option

Q: USA Today reported results from an Arity survey in which 2018 drivers were asked if they text while…

A: 1. The survey conducted on 2018 drivers.

Q: random sample of 250 SCC students yields 79 full-timers and 171 part-timers.  (a)Construct a 90%…

A: given data,      79   -full timers+171   - part timers =250  -total sample size confidence interval…

Q: student of the ninth grade with a total s, scored 75 in an exam in which the m E all students was 70…

A: Given: John Raw score (x1) = 75 Population meanμ1=70Population standard deviation σ1=2Sample size…

Q: (a) The following table lists the total water usage in South Africa in billions of liters per day.…

A: Data for water use according to years are given. Least square exponential equation=? Prediction of…

Q: survey found that women's heights are normally distributed with mean 62.1 in. and standard deviation…

A:

Q: You toss three coins one time. What is the sample space? How would you complete the probability…

A: Given that  A coin tossed 3 times

Q: Confidence level=95%, degrees of freedom=14 i

A: Ans# - Given       confidence level = 95%      degree of freedom = 14     Find t percentile that is…

Q: Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most…

A: It is given that the statement about to the level of measurement. Here, need to find out the correct…

Q: thes the population mean, μ. F. The distribution of means will approximately follow the distribution…

A: It is given that the appropriate conditions for the Central limit theorem. Here, need to select the…

Q: The standard deviation of the chi-square distribution is twice the mean.   True False

A: We want to tell you above statement is true or false

Q: Subject: Statistics Question: The following data shows the number of Dengue cases in a Private…

A: Given data: 11, 18, 9, 10, 14, 15, 7, 18, 15, 10, 22, 19, 10, 16, 5, 7, 20

Q: ANOVA was used to test the outcomes of three drug treatments. Each drug was given to 20 individuals.…

A: Given that  MSE = 16 , Total Sample = n = 60

Q: 3. An automatic machine inserts mixed vegetables into a plastic bag. Past experience revealed that…

A: Introduction: It is required to find the probability of selecting four packages that are…

Q: Suppose a marketing company randomly surveyed 442 households and found that in 252 of them, the…

A:

Q: K Assume that population proportion is to be estimated from the sample described. Use the sample…

A: Given that  n = 535 , p^ = 0.4  95% confidence interval

Q: Use probability notation when finding probability. A coin is flipped, then a die is rolled. List…

A: Given: A coin is flipped, then a die is rolled.

Q: Let’s go to the movies: A random sample of 35 Hollywood movies made in the last 10 years had a mean…

A: From the provided information, Sample size (n) = 35 Sample mean (x̄) = 125.2 Standard deviation (s)…

Q: Determine the point estimate of the population proportion, the margin of error for the following…

A: given , confidence interval lower bound  = 0.259 i.e. p^-E = 0.259confidence interval upper bound =…

Q: 4. Find P7 A. Z = -3.21 B. z = -1.48 C. z = 1.48 D. z = 0.74

A: we had given data  standard normal distribution z~N(0,1) we have to fond 7h percentile

Q: test for a new exam was given to randomly selected seniors. The exams were graded, and the sample…

A:

Q: The accompanying data set includes volumes (ounces) of a sample of cans of regular Coke. The summary…

A: It is given that, The sample size is 36. The sample mean is 12.193. The sample standard deviation is…

Q: Identify the test statistics _________________ (Round to two decimal places as needed.) 2. Identify…

A: Given that  Sample size n =36 Sample mean =12.189 Sample standard deviation =0.109

Q: A data set includes data from student evaluations of courses. The summary statistics are n = 85, x=…

A: We have given that, Sample size n=85 Sample mean=3.94 Sample standard deviation=0.63

Q: Among a random sample of 150 employees of a particular company, the mean commute distance is 25.2…

A: Given information: For the sample of 150 employees, the sample mean is 25.2. This mean lies 1.7…

Q: A field has 45% of pumpkin. How many degrees would that represent on a pie chart

A: Pie chart : It is circular graphical representation, One circle=360 degrees

Q: Let z be a standard normal random variable with mean μ = 0 and standard deviation = 1. Use Table 3…

A: The random variable z follows standard normal distribution with mean µ = 0 and standard deviation σ…

Q: An engineer is going to redesign an ejection seat for an airplane. The seat was designed for pilots…

A: The mean is 136 lb and a standard deviation is 26.8 lb.

Q: Use the hourly rates on the right (rounded to the nearest whole dollar) 35 support employees in a…

A: given data,here we have to find out the frequency distribution and find out the grop mean also here…

Q: A dentist office gives a survey to all wisdom teeth extraction patients asking them to rate the…

A: Please find the explanation below. Thank you. Given a dentist office gives a survey to all wisdom…

Q: The national average SAT schore was found to be a 2140 with a standard deviation of 892. If the…

A:

Q: average height of childen in a school is 43" with a SD = 3.4" Write each answer as a 2-dedcimal…

A: Given that  Mean = 43 , Standard deviation = 3.4

Q: Happy Cruise lines provides vacations for customers to various Caribbean destinations .The mean…

A:

Q: As part of a study on how people of different ages use mobile technology, each person in a sample…

A: Given that  n1 = 258 , X1 = 168 , n2 = 129 , X2 = 61

Q: Hi There. I need help with this stats question in Excel. I'm totally lost - I believe it relates to…

A: Given The average number of clicks per minute on the website =342 The number of seconds in a minute…

Q: 4. What does this sentence explain? (Short- answer in the blank) answer-Please A measure of how well…

A: Note: According to bartleby guidelines, expert solve only one question and rest can be reposted.

Q: pressure (SBP) during the test was 118.3 mm HG with a standard deviation of 9.9 mm HG. Construct a…

A: Given that  Sample size n =14 Sample mean=118.3 Standard deviation =9.9

Q: A fiber-spinning process currently produces a fiber whose strength is normally distributed. The…

A: Given information: 15% of the fibers produced by current method have strengths less than 70.85. 10%…

Q: Calculate the standard deviation of the following data sets with the computational formula.  If…

A: According to the given information in this question We need to find the value of standard deviation

Q: Suppose you roll two fair, six-sided dice - one red and one green. The following figure shows the…

A: It is given that two fair six-sided dice are rolled in which one red and one green.

Q: Complete the class frequency table below. Class interval 6-10 11-15 16-20 21-25 26-30 Total Class…

A: The data are arrange in increase order and the increase order are: 6, 7, 8, 10, 10, 11, 11, 11, 11,…

Q: Stocks A, B, and C have expected returns of 12 percent, 12 percent, and 10 percent, respectively,…

A: From the provided information, μ1=12μ2=12μ3=10σ1=39σ2=30σ3=30

Q: X1 300 X2 360 X3 480 X4 X5 528 528 Required find the following: as they related 1 - Arithmetic mean…

A: As per our guidelines we are supposed to answer only 3 sub-parts of any questions so i am solving…

Q: Accu-Copiers, Inc., sells and services the Accu-500 copying machine. As part of its standard service…

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