standard deviation of 10 kmph. What is the probability that a car picked at random is travelling at a speed of more than 100 kmph?

Q: a. Assume that is known about the percentage of passengers who prefer alsie seats. n= (Round up to…

A: given data 90% ci E =0.015n= ? α = 1-0.90 = 0.10Zα2 = Z0.05 = 1.645   [from excel function…

Q: A. Identify the actual number of respondents who ted them selves above average drivers. B Identify…

A:

Q: 4.2.9. Let X₁, X2,..., X9 be a random sample of size 9 from a distribution that is N(μ, 0²). (a) Ifo…

A: Given: Let X1, X2,.....X9 be a random sample of size 9 from a distribution that is Normal with mean…

Q: 6. Construct a stem-and-leaf for the data with a 1-digit stem, leaves do NOT need to be in order.…

A: The given data is 644, 581, 431, 644, 820, 773, 899, 417, 858.

Q: day supermar are normally distributed with mean and standard deviation of 496.1 and 23.15.…

A: Solution

Q: 4) Data set: 120 132 124 118 126 128 118 116 123 120 124 134 116 120 122 117; data value: 126 Find…

A: Answer..

Q: An experimental study was conducted on the effect of modular ma teacher randomly selected 20 college…

A: Given,

Q: A purchasing manager at a university is investigating which brand of LCD projector to purchase for…

A: Given information:

Q: There are 20 black cards, 10 red cards, 12 yellow cards, and 8 green cards on the table.  What is…

A: Given,no.of black cards=20no.of red cards=10no.of yellow cards=12no.of green cards=8Total no.of…

Q: Time to Study Frequency Relative Frequency (%) Early Morning 0%E Late Morning Early Afternoon Late…

A: Given: Number of observations n = 56 Formula Used: Relative frequency = Fn Where F is the frequency…

Q: Consider a population that grows according to the recursive rule Pn Po = 20. Then: P₁ = P₂= Find an…

A:

Q: A paired difference experiment is conducted to compare the starting salaries of male and female…

A: The t test are type of parametric test. It follows the assumption of normal distribution in the…

Q: In a newspaper's survey of 447 people, 53.2% said that we should replace passwords with biometric…

A: given data  n = 447 α = 0.10 claim: p = 0.50 from display we have to give answers .

Q: 34) Disco Fever is randomly found in one half of one percent of the general population. Testing a…

A: Solution To find the probability we will use Bayes theorem.

Q: You would like to find the proportion of foreign-born population in NYC. From "The Newest New…

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

Q: The test statistic of z = 1.24 is obtained when testing the claim that p#0.453. a. Identify the…

A:

Q: Consider the following exponential probability density function. a. Which of the following is the…

A: X has exponential distribution and probability density function of X isf(x)=12e-x2   for x≥0

Q: 6 The test statistic of z= -2.47 is obtained when testing the claim that p<. This is a left-tailed…

A:

Q: 47. For the following data set, which totals 125, identify the mean, the median and the mode 1; 2;…

A: According to guidelines we solve first question when given questions are different.

Q: Medical researchers have devel indefinitely once it is implanted in battery packs is selected and su…

A: Given that  Sample size n =50 Sample mean =4.05 Population standard deviation =0.2

Q: Suppose that the number of gallons of milk sold per day at a local supermarket are normally…

A:

Q: the answer must be in a form of fraction so 516 should be in form of fraction

A: Here, Events are independent because P(0)+P(1) +.... P(5)=1 For independent events  P(A or B) = P(A)…

Q: Determine the regression equation in three different ways (using raw data, deviation data and…

A: Let y = a+bx be the regression equation Y is the dependent variable and x is the independent…

Q: Review the following admission and discharge rates from a local hospital within a 24-hour period.…

A:

Q: You may need to use the appropriate appendix table or technology to answer this question. The makers…

A: The given sample size is 52, sample mean is 24 and sample standard deviation is 5.

Q: Given that a stock increased in price, what is the probability that it also paid dividends?

A: It is given that Number of stocks increased in price and paid dividend = 40 Number of stocks…

Q: 5. Circle one answer in each row for "Type of Variable" and "Level of Measurement". Variable Type of…

A:

Q: Identify the null and alternative hypotheses H₂: H₂: (Type integers or decimals. Do not round.)…

A: Given :

Q: what is the probability that all three are defective? (b) If four items arrive in succession, what…

A: It is given that  P( defective ) = p = 20% = 0.20 Here, we have parameter p = 0.20 and n ( different…

Q: d. How many transactions were made in total (in both months at all 3 stores) e. What percent of the…

A: store 1 store 2 store 3 total month 1 163 140 144 447 month 2 195 184 181 560 total 358 324…

Q: 3. Students are asked to count the number of chocolate chips in 22 cookies for a class activity.…

A: Standard error measure the variability in the mean of the sample. It is the combined value of…

Q: estimate of the variance of the population was found to be 15.0 From another sample of 14…

A: Given that  n1 = 25 , S12 = 15 , n2 = 14 , S22 = 9.7

Q: N=27,500 not 28542

A: Data is given for frequency according to days We have to calculate relative frequency table and bar…

Q: Discrete Probability Distribution A shipment of 12 television sets contains 3 defective sets. In how…

A:

Q: 2. Researchers studying anthropometry collected various body and skeletal measurements for 507…

A: Given that We have to find the best variability:

Q: 20% of adults in the particular community have at least a bachelors degree. Suppose X is a binomial,…

A: It is given X is defined as the number of adults with at least a bachelors degree.

Q: Assume a significance level of a = 0.05 and use the given information to complete parts (a) and (b)…

A: Given that P value =0.0263 ,α =0.05

Q: Use the given information to find the minimum sample size required to estimate an unknown population…

A: GivenMargin of error(E)=5standard deviation(σ)=60confidence level=95%

Q: Time to review: The following table presents the time taken to review articles that were submitted…

A: Given data :

Q: believed that 25.35% of U.S. homes have a direct satellite television receiver. How large a sample…

A: Given that  p = 25.35% = 0.2535 , E = 3.19% = 0.0319 99% confidence

Q: A manufacturer of battery claims that the life of his batteries is approximately normally…

A: The following information has been provided: Let X be a random variable represents the  life of his…

Q: Let X be a random variable such that a. V(3x-3) b. E(3x-3) E(X²) = 58 and V(X) = 40. Compute

A: Answer:- Given, X be a random variable such that  E(X2) = 58 and V(X) = 40               (a) Find…

Q: Find the range of the given data: 53,17,73,37,73,83,83,94,54,16

A: Given data is, 53,17,73,37,73,83,83,94,54,16 We have to find the range of the data. Given data in…

Q: a. Is it possible to recover the raw data from this table? h What is the total number o

A:

Q: The claim is that smokers have a mean cotinine level greater than the level of 2.84 ng/mL found for…

A:

Q: The test statistic of z= -1.77 is obtained when testing the claim that p *0.619. This is a…

A: Given Test statistic Z=-1.77,  Hypothesis Ho: p=0.619 vs H1: p≠0.619 (claim) two tailed  Level of…

Q: The probability that a randomly selected person has high blood pressure (the event H) is P(H) = 0.4…

A: Conditional probability :  The probability of event A occurring given that event B has occurred is…

Q: x P(X=x) 0 14 1 38 2 38 x P(X=x) 0 18 1 18 2 34 x P(X=x) 0 −310 1 110 2 15 3 1 x…

A: None of the above pmf is valid