A package delivery service claims that it takes an average of 30 hours or less to send a package from Manila to Cebu. An independent consumer agency is doing a study to test the truth of this claim. Several complaints had led the agency to suspect that the delivery time is longer than 30 hours. H0:µ ≤ 30; H1: µ > 30 H0:µ = 30; H1: µ ≠30 H0:µ ≥ 30; H1: µ < 30 H0:µ < 30; H1: µ ≥ 30

A package delivery service claims that it takes an average of 30 hours or less to send a package from Manila to Cebu. An independent consumer agency is doing a study to test the truth of this claim. Several complaints had led the agency to suspect that the delivery time is longer than 30 hours. H0:µ ≤ 30; H1: µ > 30 H0:µ = 30; H1: µ ≠30 H0:µ ≥ 30; H1: µ < 30 H0:µ < 30; H1: µ ≥ 30

Name: A package delivery service claims that it takes an average of 30 hours
Uploaded: 2024-03-20T07:07:12.000Z
Channel: Bartleby
Description: A package delivery service claims that it takes an average of 30 hours or less to send a package from Manila to Cebu. An independent consumer agency is doing a study to test the truth of this claim. Several complaints had led the agency to suspect th

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter6: Linear Systems

Section6.8: Linear Programming

Problem 4SC: If the cost of each Robust tablet increases to 75 c and the cost of each Vigortab increases to 80 c...

See similar textbooks

Similar questions

If the cost of each Robust tablet increases to 75 c and the cost of each Vigortab increases to 80 c , find the minimum cost.
A report in LTO stated that the average age of taxis in the Philippines is 9 years. An operations manager of a large taxi company selects of 40 taxis and finds the average age of the taxis is 8.2 years. The of the population is 2.3 years. At can it be concluded that the average age of the taxis in his company is less than the national average?
Workers at a particular mining site receive an average of 35 days paid vacation, which is lower than the national average. The manager of this plant is under pressure from a local union to increase the amount of paid time off. However, he does not want to give more days off to the workers because that would be costly. Instead he decides he should fire 10 employees in such a way as to raise the average number of days off that are reported by his employees. In order to achieve this goal, should he fire employees who have the most number of days off, least number of days off, or those who have about the average number of days off? a. He should fire employees who have the most number of days off. b. No matter who he fires, it will not increase the amount of paid time off. c. He should fire employees who have the average number of days off. d. He should fire employees who have the least number of days off.
The Us food and Drug administration has a limit for mercury content in fish of 1.0ppm (parts per million) while in Canada the limit is 0.5 ppm. Using the variable average mercury in the Florida lakes dataset to test whether there is evidence that average mercury level of fish ( large mouth Bass) in Florida lakes is less than 1.0ppm and whether there is evidence that average mercury level of fish in Florida lakes is less than 0.5ppm. STATE THE NULL AND ALTERNATIVE HYPOTHESES? GIVE THE TEST STATISTICS AND P-VALUE? round the test statistic to two decimal places and the p-value to three decimal places. DOES THIS SAMPLE PROVIDE EVIDENCE THAT THE AVERAGE MERCURY LEVEL OF FISH (LARGE MOUTH BASS) IN FLORIDA LAKES IS LESS THAN 1.0PPM? LESS THAN 0.5 PPM : STATE THE NULL AND ALTERNATIVE HYPOTHESES. GIVE THE TEST STATISTICS AND P-VALUE ? round the test statistic to two decimal places and the p-value to three decimal places. DOES THIS SAMPLE PROVIDE EVIDENCE THAT THE AVERAGE MERCURY…
In May 2008, CNN reported that Sports Utility Vehicles (SUVs) are plunging toward the "endangered list". Due to soaring oil prices and environmental concerns, consumers are replacing gas-guzzling vehicles with fuel-efficientsmaller cars. As a result, there has been a big drop in the demand for new as well as used SUVs. A sales manager of a used car dealership for SUVs believes that it takes more than 90 days, on average, to sell an sUV. In order to test his claim, he samples 40 recently sold SUVs and find that it took an average of 95 days to sell an SUV. He believes that the population standard deviation is fairly stable at 20 days. Determine if the sales manager's claim is justifiable at 0.05
what is the conventional minimum power a study should have? For a study with this minimum power, what is tthe probablility that you will fail to reject the null hypothesis if the research hypothesis is true?
A random sample of 1011 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1011 adults surveyed, 514 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below. (a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without. p=
3.4 The system is tested on a sample of one hundred computers and the average connection speed is found to be far below 400 kilobits. What hypothesis should probably be rejected? Explain. If the customer needs a connection speed of 400 kilobits to run her application programs, what is the business decision that corresponds to the decision regarding the hypotheses?
Automobile manufacturer Gruman has identified a vehicle quality issue with the bumpers theyare using on their mid-size sedan. Customers with these vehicles are suffering substantialdamage and repair costs in low-speed impacts to the bumpers. The company has been solicitingproposals for a new collapsible bumper system to upgrade the performance of their sedans to beequal to the industry average of $400 or less in a collision impact of ≤15 miles per hour (mph).Gruman Engineers believe they have found a bumper system that will meet this requirement. Todemonstrate it, they crashed six sedans with this bumper into a barrier at 15 mph, submitted themfor repairs and recorded the cost of the repairs. The mean and standard deviation of the costs arefound to be $458 and $48, respectively. At the α = .05 significance level, does the test datacontradict the manufacturer’s claim that the repair cost does not exceed $400? a)What is known? What information AND data does the problem provide? Provide a…
Any athlete who fails the Enormous State University's women's soccer fitness test is automatically dropped from the team. Last year, Mona Header failed the test, but claimed that this was due to the early hour. (The fitness test is traditionally given at 5 AM on a Sunday morning.) In fact, a study by the ESU Physical Education Department suggested that 48% of athletes fit enough to play on the team would fail the soccer test, although no unfit athlete could possibly pass the test. It also estimated that 42% of the athletes who take the test are fit enough to play soccer. Assuming these estimates are correct, what is the probability that Mona was justifiably dropped? (Round your answer to four decimal places.)
In a study of 48 cases of a certain diseases, it was noted that 17 cases developed complications, a frequency of 35%. a. Within the limits, would you expect the true frequency of complications in such cases to be contained? b. Suppose that you observed 170 complications in 480 cases, within what limit would you expect the true frequency of complication in such cases to be contained? c. How do you explain the difference between a and b?
To the Internal Revenue Service, the reasonableness of total itemized deductions depends on the taxpayer's adjusted gross income. Large deductions, which include charity and medical deductions, are more reasonable for taxpayers with large adjusted gross incomes. If a taxpayer claims larger than average itemized deductions for a given level of income, the chances of an IRS audit are increased. Data (in thousands of dollars) on adjusted gross income and the average or reasonable amount of itemized deductions follow. Adjusted Gross Income($1,000s) Itemized Deductions($1,000s) 22 9.6 27 9.6 32 10.1 48 11.1 65 11.5 85 19.7 120 23.5 (a) Develop a scatter diagram for these data with adjusted gross income as the independent variable. A scatter diagram has 7 points plotted on it. The horizontal axis ranges from 0 to 140 and is labeled: Adjusted Gross Income ($1,000s). The vertical axis ranges from 0 to 30 and is labeled: Itemized Deductions ($1,000s). The points are…