How many different five-character passwords can be formed from the lowercase letters of the alphabet if repetition is not allowed?

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A: Givensample size(n)=381x=320sample proportion(p^)=xn=320381≅0.8399confidence level=95%

Q: The first 8 alphabets are written down at random. what is the probability that the letters b,c,d,e…

A: Given that there are 8 alphabets  We have to find the probabilities that the letters b,c,d,e always…

Q: Consider a sample of 51 football games, where 29 of them were won by the home team. Use a 0.10…

A: given data, n=51x=29p^=xn =2951 =0.5686α=0.10claim that the probability that the home team wins is…

Q: You are conducting a multinomial hypothesis test (a 0.05) for the claim that all 5 categories are…

A: Solution:  Given information: k=5 Categories  n=18+25+13+9+9= 74 Sample size

Q: 1. Lazarus Steel Corporation produces iron rods that are supposed to be 36 inches long. The machine…

A: From the provided information, Population standard deviation (σ) = 0.035 Sample mean (x̄) = 36.015…

Q: The mean blood cholesterol level for all men aged 20 to 34 years is μ=188μ=188 mg/dl. We suspect…

A: Introduction: Denote μ as the true population mean blood cholesterol level for all men aged 20 to 34…

Q: Assume that a set of test scores is normally distributed with a mean of 110 and a standard deviation…

A: Empirical rule of probability:- Approx. 99.7% of the data lies between ± 3 SD limit of mean μ  ±3 σ…

Q: Citizens of a country were asked if they thought unemployment would increase, and 46% thought that…

A: Givensample size(n)=637x=268sample proportion(p^)=xn=268637≅0.4207significance level(α)=0.05

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

A: Givensample size(n)=4658x=105Cofidence level=95%

Q: A poll of 2,096 randomly selected adults showed that 91​% of them own cell phones. The technology…

A: The given technology output is,

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

A: Givensample size(n)=4658x=105confidence level=95%

Q: selected a bag of colored candies. He counted the number of candies of each color and obtained the…

A: Solution: Given information: k=6 Categories  Proportion of brown= p1 = 0.13  Proportion of yellow…

Q: Claim: Fewer than 91% of adults have a cell phone. In a reputable poll of 1167 adults, 85% said that…

A: Given that  p = 91% = 0.91 , q = 1 - p = 1 - 0.91 = 0.09 n = 1167 , p^ = 85% = 0.85

Q: Suppose the Humane Society claims that 30% of U.S. households own cats. You believe your community…

A: given data, claim:p≠0.30n=30030% owns cat p^=0.30α=0.10we have to complete hypotheisis for the given…

Q: A jar of peanut is supposed to have 16 ounces of peanuts. The filling machine inevitably experiences…

A: From the provided information, Sample size (n) = 12 Confidence level = 90%

Q: We have given the value obtained for the test statistic, z, in a one-mean z test. We have also…

A: The given significance level is 5%.

Q: In the trunk where there are 5 triangles, 3 circles and 2 rectangles. Performing extractions with…

A: given data  5 triangles 3 circles 2 rectangles ___________________ 10 total items

Q: se the sample data and confidence level given below to complete parts​ (a) through​ (d).   A drug is…

A: given data, x=118n=4409p^=xn  =1184409   =0.0268CI=0.90

Q: Determine the required value of the missing probability to make the distribution a discrete…

A: GIVEN DATA,x      P(x)3      0.314     a5     0.206     0.23we have to find out the p(4)=?

Q: 1. The percentage of defective articles produced by a machine is 8%. Use a suitable approximation…

A: Let there are n trials and each having two outcomes - Success and Failure. The trials are…

Q: In the state of lowa, there are 252 eight year olds diagnosed with ASD out of 18,937 eight year olds…

A:

Q: Consider the experiment of rolling a pair of dice. Suppose that we are interested in the sum of the…

A: The sample space of rolling a pair of dice is, Sample space…

Q: You are designing a two-arm parallel-groups trial of a new blood pressure-lowering medication…

A: A  two-arm parallel-groups design is applied to test a new blood pressure-lowering medication…

Q: Find a confidence interval for μ or p. a. A random sample of 19 adults participated in a four-month…

A: Given: n = 19 X = 11.2 s = 2.6 Confidence level = 98% n = 815 X = 272 Confidence level = 90% Formula…

Q: Aspirin prevents blood from clotting and helps prevent strokes. The Second European Stroke…

A: Given ,  Aspirin alone :  Sample size = n1 = 200  Number of strokes = x1= 60 Sample proportion = p^1…

Q: At an electronics firm, it is known from past experience that the probability a new worker who…

A:

Q: Many high school students take the AP tests in different subject areas. In one year, of the 144,270…

A: Given that   We have to conduct hypothesis testing for the claim that proportion of female students…

Q: Suppose a card is drawn randomly from an ordinary deck of playing cards, and then put back in the…

A:

Q: The manufacturer of a certain candy states that 13% of the candies are brown, 24% yellow, 14% red,…

A: by bartleby policy i can gives only 3 subparts at a time From given data we have : 13% brown 24%…

Q: We define the ratio random variable of two random variables X and Y is Z = . (a) If X~ Binomial (3,)…

A: Given that the ratio random variable of two random variables X and Y is Z=XY.

Q: If FAB (a,b) is the joint CDF of random variables A and B, then P(A2a, B≤ b) gives a. FAB (0,b) -…

A: Given that, F(a,b) is the joint CDF of random variables A and B.

Q: ´,. If f (x, y)= kxye-(x2 + y2), x ≥, y0 ≥ 0 is the joint pdf, find k.

A:

Q: A decade-old study found that the proportion, p, of high school seniors who believed that "getting…

A: given data clim : p ≠0.80n = 205x = 157α = 0.05p^ = xn = 157205 = 0.7659

Q: Use the standard normal table to find the area to the left of z = -2.64. Click here to view page 1…

A: Denote the random variable Z has a standard normal distribution. Thus, Z~ N (µ=0, σ=1).

Q: Suppose the number of cell phone calls made or received per day by cell phone users follows a normal…

A:

Q: What is the area under the normal curve between z = 0.5 and z = 2.0? A - 0.2857 B - 0.1359 C -…

A: R programming has used to calculate the probability area.

Q: "Trydint" bubble-gum company claims that 5 out of 10 people prefer their gum to "Eklypse". Test…

A: Given data, claim:5 out of 10people prefer their gum to…

Q: Eyeglassomatic manufactures eyeglasses for different retailers. They test to see how many defective…

A: given data sample size (n) = 34714favorable outcomes (x) = 580990% ci p.

Q: Find a value of c so that P(Z ≥ c) = 0.53. a) 0.28 b) 1.08 c) 0.08 d) −0.15 e) −0.08 f) None of the…

A: GivenP(Z≥c)=0.53

Q: You wish to test the following claim (H1H1) at a significance level of α=0.05α=0.05.…

A: Note: Thank you for the question. Since multiple subparts are posted, we are answering the first…

Q: #2 A security guard knows that the time it takes to make the rounds in a certain warehouse is a…

A: Given,mean(μ)=18standard deviation(σ)=3.2sample size(n)=64

Q: Some people are concerned that new tougher standards and high stakes tests adopted in many states…

A: Given: P = 0.109 n = 1782 X = 210 α = 0.05 Formula Used: Test-statistic Z = p-PP(1-P)n

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

A:

Q: na hypothesis test, the p-value was calculated as 0.025. If the level of significance is, a = 0.05,…

A: From the given information, the p-value is 0.025.

Q: Listed below are the overhead widths​ (in cm) of seals measured from photographs and the weights​…

A: Given: n = 6 α = 0.01 Formula Used: r = n∑XY-∑X∑Yn∑X2-∑X2n∑Y2-∑Y2

Q: Use the assumed mean, A = 534.5 to compute the arithmetic mean of the grouped data.

A: Class  freq (f) mid (x) d=(x-A)/h f*d c*f 510-519 7 514.5 -2 -14 7 520-529 10 524.5 -1 -10 17…

Q: According to a research institution, men spent an average of $134.08 on Valentine's Day gifts in…

A: As per our guidelines we are suppose to answer only three sub parts. Given,sample…

Q: TEST- Part 2 - Normal Curve 2. The weekly salaries of teachers in one state are normally distributed…

A: We have:-    according to given question random  variable follows normal distribution as follows…

Q: he data given to the right includes data from 40 ​candies, and 7 of them are red. The company that…

A: given data, 7- red candies 40-total candies p^=xn=740=0.175CI=0.90α=1-0.90=0.10

Q: Why is shoe sizes of that child are between 5 to 10 is considered as a discrete quantitative…

A: A country's population, a person shoe size. Or a car speed all are quantitative variables.