An environmentalist wants to find out the fraction of oil tankers that have spills each month. Step 1 of 2: Suppose a sample of 432 tankers is drawn. Of these ships, 337 did not have spills. Using the data, estimate the proportion of oil tankers that had spills. Enter your answer as a fraction or a decimal number rounded to three decimal places. Answer Tables Key

Q: In a survey of 3312 adults, 1447 say they have started paying bills online in the last year.…

A:

Q: 3 4 Percentage 44% 36% 15% 4% 1% a. Find the probability that a fisherman selected at random catches…

A: Given Information: x 0 1 2 3 4 Percentage 44% = 0.44 36% = 0.36 15% = 0.15 4% = 0.04 1% = 0.01…

Q: Suppose a sample of 158158 tankers is drawn. Of these ships, 135135 did not have spills. Using the…

A: It is given that, among 158 tankers 135 did not have spills.

Q: Estimate what percentage of the class received a B

A: Introduction: In a pie chart, the complete circle of 360 degrees indicates the complete, 100% of the…

Q: quality conscious disc manufacturer wishes to know the fraction of disks his company makes which are…

A: Given Sample size =865 X=112

Q: A football kicker makes 70% of his field goals. If he attempts 20 field goals, determine the mean…

A: Determine the mean number of field goals made by football kicker. From the information, given that a…

Q: A quality conscience disk-manufacturer wishes to know the fraction of disks his company makes that…

A: Givensample size(n)=1635No.of defective(x)=228

Q: What percentage of the shoppers have an email account

A: In the question it is asked to calculate the percentage of shoppers that have an email account.

Q: A student wanted to study how many matches came in a box. They recorded the following data. How many…

A:

Q: Martha Quinn is interested in the proportion of fast to slow songs she will play today.  She takes…

A: In this method of selection, each song have equal probability of getting selected and the selection…

Q: Create a Scatterplot of y against percentage of Pell Grant recipients among freshmen.

A: The data for 2016 graduation rate and full-time undergraduate student to faculty ratio is given as-…

Q: Provide an appropriate response. When 390 junior college students were surveyed,115 said that they…

A: It was given that 115 out of 390 junior college students have previously owned a motorcycle.

Q: A quality-conscious disk manufacturer wishes to know the fraction of disks his company makes which…

A:

Q: A quality-conscious disk manufacturer wishes to knoww the fraction of disks his company makes which…

A: Given, The no. of sample, n =5431 The number of defective, x = 4943

Q: A company gives the percentage of defective products as 6% or less. Use the sample below to…

A: Given: p0=0.06n=50x=5 The significance level is taken as 0.05.

Q: When 450 junior college students were surveyed, 125 said that they have previously owned a…

A: sample size(n)=450 No. of students said that they have previously owned a motorcycle(x)=125

Q: Cough and Headache At the 98% confidence level, should be nurse inform the managers that their…

A: The number of sampled patients that complained of cough and headache, n=230.The number of patients…

Q: Interpret the estimates b1 and b2

A: Reviewing information, Given, y=β0+β1x1i+β2x2i+εiWhere,y=milk consumption, in quarts per…

Q: what percentage of bus drivers had 3 or more traffics acccidents

A: From the provided information, Sample size (n) = 700 Total frequency of 3 or more traffic accidents…

Q: Joey took a survey of his classmates' food preferences and recorded them in the table below.…

A: Relative frequency

Q: Find the 5 number summary for the data shown. 13 21 26 32 37 56 59 74 75 81 97 99 5 number summary:

A: The five number summary consists of, Minimum First quartile second quartile third quartile maximum

Q: Raymond wants to estimate the percentage of parents that use cloth diapers. He asks a randomly…

A: According to the provided information, The data set will represent the collection of response…

Q: The price per share of stock for a sample of 25 companies was recorded at the beginning of the first…

A: Given data: Beginning End 53.82 54.19 77.02 55.7 109 102.57 83.58 79.95 139.23 126.01…

Q: stimate the proportion of all households that are very satisfied from the house they are living

A: The given data represents the responses of 50 households on their satisfaction level from the house.

Q: Find the point estimate for the population proportion.             A Southern student wants to know…

A: It is given that the sample size (n) is 888 and the number of people spoke 2 or more languages is…

Q: An automotive manufacturer wants to know the proportion of new car buyers who prefer foreign cars…

A: Given Information: A random sample of 1164 new car buyers is drawn. Of those sampled 325 preferred…

Q: Identify the population being studied and the sample chosen. The final exam scores of 44 out of the…

A: Solution: Sample is the subset of population. Population is the entire set of units under study.

Q: Find the 5 number summary for the data shown. 2 3 5 9 26 | 43 46 68 72 86 87 92 95 5 number summary:

A: Solution-: We find the five number summary for data: 2,3,5,9,26,43,46,68,72,86,87,92,95

Q: A local college newsletter reported that the average American college student spends one hour (60…

A: Males Females 210 45 930 75 30 30 30 45 10 15 5 180 750 90 270 120 60 150 150 15…

Q: Step 1 of 2: Suppose a sample of 1875 floppy disks is drawn. Of these disks, 1594 were not…

A: Let p be the population proportion of defective disks.Given that,Sample size Number of non-defective…

Q: Americans spend nearly $7 billion on Halloween costumes and decorations. Sample data showing the…

A:

Q: What percentage of your campus student body is female? Let p be the proportion of women students on…

A: Step 1:Given data: confidence level: 95%Margin of error E=0.06 Step 2:for 99% confidence, α=0.01…