Math

StatisticsQ&A LibraryQuestion Heip Oil field pipes are internally coated in order to prevent corrosion. Researchers at a university investigated the influence that coating may have on the surface roughness of oil field pipes. A scanning probe instrument was used to measure the surface roughness of each section in a sample of 8 sections of coated interior pipe. The data (in micrometers) are shown in the table to the right. A Minitab analysis of the data is given below. Complete parts a and 1.73 2.38 1.39 202 2.46 1.01 2.14 1.91 b. One-Sample T: ROUGH Variable Mean StDev SE Mean 95% CI 0.17393 (1.46873, 2.29127) ROUGH 1.88000 8 0.49193 a. Locate a 95% confidence interval for the mean surface roughness of coated interior pipe on the accompanying Minitab printout (Type integers or a decimals.) frect: 0 ? Enter your answer in the edit fields and then click Check Answer 1part remaining CeanAl 8 | )a ere to search 11/5Question

Please round to 5 decimal places

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: The average weight of a package of rolled oats is supposed to be at least 18 ounces. A sample of 18 ...

A: Null hypothesis:A statistical hypothesis which is assumed and whose validity is tested for possible ...

Q: You are playing a card came, and the probability that you will win a game is p=0.59p=0.59.If you pla...

A: It is given that the random variable X, number of wins in a card game follows a binomial distributio...

Q: A certain snack vending machine dispenses the incorrect item, on average, 4.2 times every day. Assum...

A: The snack vending machine dispenses the incorrect item on average 4.2 times per day.Thus,

Q: What are the assumptions underlying the repeated-measures ANOVA

A: Repeated measures ANOVA:Repeated measures ANOVA is a belongs to the family of ANOVA. The repeated me...

Q: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 14.4 year...

A: Given information:Mean, µ=14.4Standard deviation, σ=3.8Sample size, n=23

Q: We wish to estimate what percent of adult residents in a certain county are parents. Out of 200 adul...

A: It is given that n is 200, x is 150 and the confidence level is 0.99.

Q: Toby's Trucking Company determined that on an annual basis, the distance traveled per truck is norma...

A: It is given that the mean and standard deviation are 50,000 and 12,000.

Q: Please show TI 84 steps

A: Consider X to be the random variable, defined as the lead level in water specimens with sample mean ...

Q: SAT scores (out of 2,400) are normally distributed with a mean of 1,500 and a standard deviation of ...

A: It is given that the mean and standard deviation are 1,500 and 300, respectively.