d. What is the probability that no more than 7 of the 15 students in your sample say that they have not received hurtful comments online in the past 30 days?

Q: Tryouts are being conducted for a baseball team. a. in how many ways can a coaching staff of 5 be…

A: a. There is total 15 applicants.

Q: What is the formula for the expected number of successes in a binomial experiment with n trials and…

A: According to the given information, we have The distribution used is binomial distribution.

Q: Consider the following time series data:   Month 1 2 3 4 5 6 7 Value 24 12 20 11 19 24 16…

A: Month: {1,2,3,4,5,6,7}  Value: {24,12,20,11,19,24,16}  We have to calculate :  MSE = sum(absolute…

Q: Trials in an experiment with a polygraph include 96 results that include 23 cases of wrong results…

A: From the provided information, Sample size (n) = 96 From which 73 cases of correct results. Level of…

Q: Jackie Andrade, a psychology professor at the University of Plymouth, conducted a study regarding…

A: SSbetween = 8662.34 SSwithin = 26038.11 SStotal  = 34700.44

Q: According to an automobile association, the average cost of a gallon of regular unleaded fuel at gas…

A: Given: Mean (µ) = 2.825 Standard deviation (σ) = 0.15 X~N (2.825, 0.15) Sample size (n) = 100

Q: Think about how close the line Y = -2X + 10 is to the sample points. Look at the graph and find each…

A:

Q: The results of a national survey showed that on average, adults sleep 6.5 hours per night. Suppose…

A: µ = 6.5  σ = 1.8  (a) using chebyshev's theorem,  Percentage between (2.9 & 10.1) = ?    (b) :…

Q: A hospital administrator wants to estimate the proportion of patients whose hospital stay exceeds a…

A: From the provided information, Margin of error (E) = 0.04 Confidence level = 98%

Q: Each member of a random sample of 17 business economists was asked to predict the rate of inflation…

A: Sample size, n=17 Population standard deviation, σ=1.9%

Q: A survey of 50 girls in canada who played soccer in the summer found that 35 of them also played…

A: sample size(n)=50No.of girls played volleyball in the winter(x)=35

Q: I'm sorry to bother, but it's hard for me to read the answer you give. Could you rewrite the…

A:

Q: The accompanying Automobile Options dataset provides data on options ordered together for a…

A: The given data is  Slower Engine   Faster Engine   Fastest Engine   No Warranty   3 Year Warranty…

Q: Consider the following time series:   Quarter Year 1 Year 2 Year 3 1 66 63 57 2 48 40 50 3 59 61…

A: Quarter Year 1 Year 2 Year 3 1 66 63 57 2 48 40 50 3 59 61 54 4 73 76 67

Q: ata are collected in a clinical trial evaluating a new compound designed to improve wound healing…

A: To test whether the percentage of wound healing is independent of the treatment or not, we can carry…

Q: c) Would it be appropriate to use these data to create a confidence interval for the number of folds…

A: Given that mean = 72 and median = 78

Q: Twelve homemakers were asked to estimate the retail selling price of two models of refrigerators.…

A: The null and alternative hypotheses are: H0: The median selling price of Model 1 is equal to the…

Q: In a survey of 793 adults, 460 say they have started paying bills online in the last year. Construct…

A: Answer: From the given data, Sample size(n) = 793 X = 460 98% confidence interval,

Q: Construct a 99​% confidence interval of the population proportion using the given information.…

A:

Q: A certain drug is used to treat asthma. In a clinical trial of the drug, 18 of 292 treated subjects…

A: Number of successes, x=18 Sample size, n=292 Significance level, α=0.10

Q: (a) Compute the mean waiting time (in minutes) for these 40 patients. (Round your answer to two…

A: As per our guideline we are supposed to answer only 3 subparts of any question so i am solving first…

Q: A survey of attendance records shows that high school seniors average 10.5 sick days per school year…

A: Let, x denotes sick days per school year of high school seniors. It is given that- x~N10.5,5.25

Q: Migraine and Acupuncture: A migraine is a particularly painful type of headache, which patients…

A: It is of interest to test whether migraine pain relief is dependent on receiving acupuncture.

Q: Forty-minute workouts of one of the following activities three days a week will lead to a loss of…

A: Hypothesis tests are used to study the population when it is large by taking the sample. A type of…

Q: About 8% of the population has a particular genetic mutation, A group of 800 people is randomly…

A: Answer: From the given data, A group of 800 people is randomly selected, Here, n = 800     and    p…

Q: Is the regression coefficient of education (Educ) statistically significant? (Use ? = 0.05.) Given…

A: Here dependent variable is the person's annual salary. The independent variables are her years of…

Q: Month 1 2 3 4 5 What is the forecast for month 8? 12 6 Value 21 10 17 9 16 20 12 7 Compute MSE using…

A: Month 1 2 3 4 5 6 7 Value  21 10 17 9 16 20 12 what is the forecast for month 8?

Q: Next, the variance of Job 1 is the variance of Job 2 is and the variance of Job 3 is The standard…

A: The probability distribution of earnings for three jobs for outcomes A and B are given below: For…

Q: What is the size of the sample:  What is the size of the population:

A: A political scientist surveys 30 of the current 129 representatives in a state's legislature.

Q: A financial analyst is examining the relationship between stock prices and earnings per share. She…

A: a) In this case, the independent variable is earning per share (x) and the dependent variable is…

Q: Mean = 9, median =12, standard deviation =4 Find the coefficient of skewness (round to two decimals)

A: From the provided information, Mean = 9, median = 12, standard deviation (s) = 4

Q: Is y significantly different from -0.5?

A: The coefficient of γ is 74.3, the corresponding standard error is 52.98 and the degrees of freedom…

Q: Would you expect distributions of these variables to be uniform, unimodal, or bimodal? Symmetric or…

A: As per our guidelines we can solve first three sub part of question and rest can be reposted.…

Q: What is the lowest rating you should give to a​ "competent" employee if you follow the​ university's…

A: Let X be the random variable that rating. X ~ N(μ=45, σ=13) The percentages given are, Exemplary…

Q: A sample of size n=89 is drawn from a population whose standard deviation is a 16. Part 1 of 2 (a)…

A: n = 89σ = 16(a) we have to find margin of error for 90% ci for μ.(b) n = 87, margin of error will be…

Q: Let X and Y be two possible events with P(X) = 0.3 and P(Y) = 0.20 respectively. Assume that events…

A: The two probability values are P(X) =0.3 and P(Y)=0.20

Q: Car manufacturers produced a variety of classic cars that continue to increase in value. Suppose the…

A: The given problem concerns Car manufacturers who produced a variety of classic cars that continue to…

Q: Assume we wanted to show that the true average pulse rate of hamsters is greater than 55 beats per…

A: The p-value is 0.864.

Q: 31. Let R have mean 10 and standard deviation 1.5. Find the approximate mean and standard deviation…

A: Solution: Q.31  Given: μ=10,σ=1.5 We want to find the approximate mean and standard deviation for…

Q: What is the probability represented by the orange shaded rectangle? number (rtol=0, atol=0.0001)…

A: Employee performance rating scores for the company Pfizer Inc. are distributed between 30.2 and 95.2…

Q: Out of a random sample of 100 purchases at the drive-up window of a fast-food establishment, 27 were…

A:

Q: According to an automobile association, the average cost of a gallon of regular unleaded fuel at gas…

A: From the provided information, Mean (µ) = 2.825 Standard deviation (σ) = 0.15 X~N (2.825, 0.15)…

Q: Twelve homemakers were asked to estimate the retail selling price of two models of refrigerators.…

A: The null and alternative hypotheses are: H0: The median selling price of Model 1 is equal to the…

Q: Q1. A psychologist conducted a study on the relationship between introversion and shyness. The…

A: Given data is Introversion Shyness 4-7-1067-4-9-58 11-7-1-307-1-8-15

Q: 17. A set of data has a normal distribution with a mean of 22 and a standard deviation of 5. What…

A: 17)  Mean μ=22 Standard deviation σ=5     NOTE: Hi there! Thanks for posting the question. Since you…

Q: Citrus Rental is a popular car rental agency that has a history of having too few cars available, so…

A: sample size(n)=16Mean(x)=1517standard deviation(s)=233significance level(α)=0.05

Q: =9, median =13, standard deviation -5 Find the coefficient of skewness (round to two decimals)

A: Answer: From the given data, Mean (x¯) = 9 Median = 13 Standard deviation(s) = 5

Q: A national study conducted by a market research firm, evaluated the top technology companies and…

A: Reputation:X Stock purchase:Y 1 3 2 1 3 4 4 2 5 9 6 5 7 10 8 6 9 7 10 8

Q: 4. Suppose the number of accidents per year in a large factory follows a Poisson distribution with A…

A: From the given information

Q: (a) Consider a t distribution with 7 degrees of freedom. Compute P(1≤1.85). Round your answer to at…

A: a) The distribution of a random variable is t The degrees of freedom are 7 b) The distribution of a…