The length of bolts produced in a machine shop are normally distributed with mean length 11.8cm. A bolt that is 12.033cm long is in the 99th percentile compared to all other bolts. Find the proportion of bolts that is shorter than 11.934cm. Answer:

Q: Calculate the proportion of the 100 samples that had at least five people own a dog. Round your…

A: You can use normal approximation..

Q: Students scored the following grades on a statistics test: 80, 80, 82, 84, 85, 86, 88, 90, 91, 92,…

A:

Q: In a survey 500 adults were interviewed, 150 said they had early medical checkup. Find the 95% for…

A: Givensample size(n)=500No.of adults said they had early medical checkup(x)=150p^=xn=150500=0.30

Q: Find the weighted mean of the number of sheets on a roll of toilet paper: 7 brands have 22 sheets on…

A:

Q: Find the range of the following data points: 100.1, 97, 77, 68, 123.4, 23.5, 214, 156, 214.2, 211,…

A:

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: Determine which of the four levels of measurement is most appropriate. The level of satisfaction…

A: Levels of measurement: Nominal: When the possible observations are tags or categories or names,…

Q: A consumer group surveyed 146 airplane travelers after a flight and found that 132 of them would fly…

A:

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 survey of 2390 musicians showed that 398 of them are left-handed. Find a point estimate for p, the…

A: We have find population left handed..

Q: condition. Find the lower cutoff score (number of berries which will go for juice).

A: The z score can be calculated as: z=x-μσ The required z score that is associated with the bottom…

Q: What is the weighted mean of the numbers 10%, 30%, 60%, 70, 86 and 94

A: The formula of weighted mean is given by…

Q: Find the z-score that cuts off 65% in the body on the left.

A:

Q: Find the geometric mean of the following data. Weight(Kg):45,60,48,100,65

A: Given data is  45 , 60, 48, 100, 65 Sample size(n)=5

Q: A researcher measured the variable feelings toward national health care insurance with the…

A: Levels of measurement: Ordinal: The ordinal variable takes only non-numerical values (in which…

Q: The histogram below gives the length of service of members of the Department of Chemistry at a…

A: The formula to compute the percentage of faculty have less than 20 years of service is, % of faculty…

Q: Report the proportion of the 370 students based on mobile phone brands as a percentage. Apple  269…

A: The percentage of a category can be calculated by dividing the frequency of the category by the…

Q: Q2: Calculate the coefficient of variation percentage of the following samples reading:…

A:

Q: Will, an art student, randomly sampled oil paintings in a museum. He wanted to find out how many oil…

A: Given :  Margin of Error  (E) = 0.02 The proportion of paintings that were created using the color…

Q: If a coin is flipped 150 times and the number of Hs is 25. Compute the proportion of Hs. Round to…

A: We have given that,  Favorable cases (X) = 25 and sample size (n) = 150 Then,  We will find the…

Q: Four fish caught in the San Antonio river had the following lengths; 15cm, 11cm, 12cm, and 18cm.…

A: Given lengths,15, 11, 12, 18sample size (n)=4

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 measure of tire wear is the percentage of tire groove lost by the tire since new. A senior JJ…

A: From the provided information,n = 15The data values are as follow:…

Q: A company wants to determine the frequency of the occurrence of invoice error. Suppose that in a…

A:

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: The medical records of infants delivered at Kaiser Memorial Hospital show tl distribution of infant…

A: Given information: Mean=20 Standard deviation=2.6 The proportion of infants among those delivered at…

Q: A company wants to determine the frequency of the occurrence of invoice errors. Suppose that in a…

A:

Q: Yi = 5,25,50,100,200.

A:

Q: The following data lists heights (in cm) of 10 kids at a pediatrician's office: 151, 139, 138, 137,…

A: Heights of 10 kids = 151, 139, 138, 137, 153, 148, 156, 161, 144, 168.The percentile is the child…

Q: Four of your classmates measured the diagonal length of the blackboard. Classmate A measured it as…

A:

Q: Determine which of the levels of measurement (nominal, ordinal, ratio) is most appropriate. The…

A: We know that the, Subjects in which college students major may be Mathematics, Statistics, Physics,…

Q: The diameter of ball bearings produced in a manufacturing process can be explained using a uniform…

A: From the provided information, The diameter of ball bearings produced in a manufacturing process can…

Q: garages A and B for estimates. Find the 95% CI for the difference between the population mean

A: Given :   1 2 3 4 5 6 A 890 900 910 710 990 650 B 880 1010 980 790 1042 600

Q: Find the point estimate of p and 96% CI.

A: Given: X: Number of students responded as Yes = 32 n: Total number of students = 100

Q: c. Find the 95th percentile.

A: From the solution, we have μ=1.157 σ=0.532

Q: In 2016 the Better Business Bureau settled 84% of complaints they received in the United States.…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: Students in a chemistry class took a test. The following are the scores they earned. Fill in the…

A: The question is about graphical representation of the data Given :   To find : a ) Fill the given…

Q: A recent survey by the US sent to spiero determined that the median monthly housing rent was $637 if…

A: For the sample observations of the house rent (in $), it is given that: The median rent, Q2=637 The…

Q: According to a college survey, 32% of all students work full time. Find the mean for the number of…

A: Given n=16 P=0.32

Q: Use the following cell phone airport data speeds​ (Mbps) from a particular network. Find the…

A: The objective is to find the percentile corresponding to the data speed 0.9 Mbps.