Math

StatisticsQ&A LibraryA new centrifugal pump is being considered for an application involving the pumping of ammonia. The specification is that the flow rate be more than 5 gallons per minute (gpm). In an initial study, eight runs were made. The average flow rate was 6.5 gpm and the standard deviation was 1.9 gpm. If the mean flow rate is found to meet the specification, the pump will be put into service. a) State the appropriate null and alternate hypotheses. b) Find the P-value. c) Should the pump be put into service? Explain.Start your trial now! First week only $4.99!*arrow_forward*

Question

A new centrifugal pump is being considered for an application involving the pumping of ammonia. The specification is that the flow rate be more than 5 gallons per minute (gpm). In an initial study, eight runs were made. The average flow rate was 6.5 gpm and the standard deviation was 1.9 gpm. If the mean flow rate is found to meet the specification, the pump will be put into service. a) State the appropriate null and alternate hypotheses. b) Find the P-value. c) Should the pump be put into service? Explain.

Tagged in

Math

Statistics

Find answers to questions asked by students like you.

Q: A real estate broker recently took a sample of recently sold homes by her agents. The square footage...

A: The appropriate Null and Alternative Hypotheses are given below: From the given information, the c...

Q: A crossover trial is a type of experiment used to compare two drugs. Subjects take one drug for a pe...

A: Click to see the answer

Q: The article “HIV-positive Smokers Considering Quitting: Differences by Race/Ethnicity” (E. Lloyd-Ric...

A: The test hypotheses are given below: Null hypothesis:

Q: The following MINITAB output presents the results of a hypothesis test for a population mean u. Some...

A: From the given information, Thus, a) Standard deviation can be computed as: It is given that standa...

Q: The distribution of wait times for customers at a certain department of motor vehicles in a large ci...

A: It is given that x-bar represents the sample mean weight time in minutes for a sample of 50 customer...

Q: Question 75 parts A, B, and C

A: Solution: 75. a. From the given information, the sample size is n=40 and p=0.59. Here, Here, np and...

Q: Cell Phones and Driving In the author’s home town of Madison, CT, there were 2733 police traffic sto...

A: Click to see the answer

Q: Below indicate whether the appropriate test would be an independent t-test, dependent t-test, One-wa...

A: Click to see the answer

Q: The time taken by an automobile mechanic to complete an oil change is random with mean 29.5 minutes ...

A: Consider X be a normal variable which follows normal distribution indicates the time required for th...

Q: Can you help me with question D, please? I am not sure if I am correct. (this is not graded; it is...

A: Click to see the answer

Q: A shipment of fibers is not acceptable if the mean breaking strength of the fibers is less than 50 N...

A: The 98% lower confidence bound is provided as 50.1 N. The hypotheses are provided as;

Q: The commercial division of a real estate firm is conducting a regression analysis of the relationshi...

A: From the given information, The regression line is given as: Y=20.2+7.25X.

Q: Studies are often done by pharmaceutical companies to determine the effectiveness of a treatment pro...

A: Enter the data in Excel as shown below

Q: Please provide step by step if possible using the calculator Ti-84 plus. if not then please use actu...

A: The provided information are:

Q: how much would you be willing to pay for a lottery ticket with a 1 in a 10 millions chance of winnin...

A: Note: Hey there! Thank you for the question. Since no particular rule is mentioned, we have assumed ...

Q: Question 84 parts C and D

A: Solution: 84. c. The test statistic for the proportion is If the sample size increases, then the sa...

Q: The cost of 5 gallons of ice cream has a standard deviation of 7 dollars with a mean of 39 dollars d...

A: Click to see the answer

Q: Hello, the attached picture is the background information for the posted question. Thank you! 2e. Ca...

A: Click to see the answer

Q: Crickets and Temperature The association between the temperature and the number of times a cricket c...

A: Click to see the answer

Q: Each chart has horizontal lines drawn at the m, at m+2o and at m+3o determine whether the process sh...

A: Requirements for out-of-control state: A process is said to be out-of-statistical control if any one...

Q: A random sample of n= 4 is obtained from a normal distribution μ=30, σ=8. What is the probability th...

A: From the given information, n=4 µ=30 σ=8

Q: Based on past experience, a bank believes that 8.9 % of the people who receive loans will not make p...

A: Proportion of people who will not make payments on time(p) = 0.089 No of approved loans = 230 Condit...

Q: Clinical Trial of Lipitor Lipitor is the trade name of the drug atorvastatin, which is used to reduc...

A: The claim is to test whether getting infections is independent of the treatment group. If the claim ...

Q: Consider the monthly time series shown in the table. Month t Y January 1 185 F...

A: Click to see the answer

Q: Colonoscopy is a medical procedure that is designed to find and remove precancerous lesions in the c...

A: Click to see the answer

Q: The temperature of a solution will be estimated by taking n independent readings and averaging them....

A: From the provided information, Standard deviation (σ) = 0.5 degree C The average is within ±0.1 degr...

Q: The undergraduate admission rate at a certain university for a certain year was 7%. a. Assuming th...

A: From the provided information, Probability of admission (p) = 0.07 Sample size (n) = 100 The distrib...

Q: Let X ~ Bin(n, p). Show that if x is an integer between 1 and n inclusive, then a. P(X = x) P(X = x-...

A: Click to see the answer

Q: Forty one percent of Manhattan High (girls school) plan to dressed up as princesses for Halloween. ...

A: Click to see the answer

Q: An ink cartridge for a laser printer is advertised to print an average of 10,000 pages. A random sam...

A: Click to see the answer

Q: Self-Reported and Measured Male Heights As part of the National Health and Nutrition Examination Sur...

A: Note: in this scenario, the confidence interval for the dataset is obtained using MINITAB. The data ...

Q: A researcher studying stress is interested in the blood pressure measurements of chief executive off...

A: Note: Hi there! Thank you for posting the question. As your question has more than 3 parts, we have ...

Q: The article "Prediction of Performance and Evaluation of Flexible Pavement Rehabilitation Strategies...

A: Click to see the answer

Q: The owners of the Westfield Mall wished to study consumer shopping habits. From earlier studies, the...

A: 1. Denote μ as the true mean time (hours) spent at the mall. The null and alternative hypotheses are...

Q: The article “Capillary Leak Syndrome in Children with C4A-Deficiency Undergoing Cardiac Surgery with...

A: Solution: State the hypotheses. Null hypothesis: That is, the mean hospital stay is not shorter for...

Q: A random sample of 50 employees of a large company was asked the question, "Do you participate in th...

A: Click to see the answer

Q: You measure 38 watermelons' weights, and find they have a mean weight of 52 ounces. Assume the popul...

A: The 95% confidence interval estimate of the population mean price for two tickets with online servic...

Q: How many ways to choose 4 out of the 10 candidates to be sent to a conference?

A: Combination Rule: The arrangement of r objects from n different objects is given by:

Q: 11. Blood type AB is found in only 3% of the population†. If 340 people are chosen at random, find t...

A: According to the provided data, the sample size, n is 340 and the probability of success, p is 0.03....

Q: The article “HIV-positive Smokers Considering Quitting: Differences by Race/Ethnicity” (E. Lloyd-Ric...

A: Note: here, MINITAB software is used to obtain the hypothesis test for proportion. In a group of 230...

Q: A tube of Listerine Tartar Control toothpaste contains 4.2 ounces. As people is the toothpaste, the ...

A: Note: Hey there! Thank you for the question. As you have posted a question with more than 3 sub-part...

Q: The mean cost of a five pound bag of shrimp is 4646 dollars with a standard deviation of 77 dollars....

A: Given data Mean cost of bag (µ) = 46 Standard deviation = 7 Sample size (n) = 49 probability that th...

Q: Assume that a simple random sample has been selected and test the given claim. Listed below are the ...

A: Solution: State the hypotheses. Null hypothesis: That is, the mean lead concentration for all medic...

Q: The following MINITAB output presents the results of a hypothesis test for the difference Hx - Hy be...

A: The values missed in the table will be obtained as given below: (a)

Q: What does combination mean in probability?

A: Combinations in probability are the number of ways to calculate the total outcomes of an event where...

Q: Let x be a random variable representing dividend yield of bank stocks. We may assume that x has a no...

A: Click to see the answer

Q: Can you help me, please? (not graded, for learning, only) last question, the first blank shows t...

A: Given data Probability of a girl = 0.5 n = 47 a) Mean (µ) = np = 47 x 0.5 = 23.5 Standard deviation ...

Q: A psychologist is interested in determining if the proportion of males who are diagnosed with depres...

A: Click to see the answer