Use the data to identify the correct response. The maximum acceptable level of a certain toxic chemical in vegetables has been set at 0.4parts per million (ppm). A consumer health group measured the level of the chemical in arandom sample of tomatoes obtained from one producer. The levels, in ppm, are shown below.0.31 0.47 0.19 0.72 0.560.91 0.29 0.83 0.49 0.280.31 0.46 0.25 0.34 0.170.58 0.19 0.26 0.47 0.81Does the data provide sufficient evidence to support the claim that the mean level of thechemical in tomatoes from this producer is greater than the recommended level of 0.4 ppm?Use a 0.05 significance level to test the claim that these sample levels come from a populationwith a mean greater than 0.4 ppm. Use the P-value method of testing hypotheses. Assume thatthe standard deviation of levels of the chemical in all such tomatoes is 0.21 ppm.Choose the correct test statistic and P-value associated with this experiment.Test statistic: z = 0.95 P-value: 0.1711Test statistic: z = -0.95 P-value: 0.1711O Test statistic: z = 0.95 P-value: 0.8289Test statistic: z = -0.95 P-value: 0.8289

Suppose μ is the population mean level of the chemical in tomatoes from the producer.

Answered: The maximum acceptable level of a…

Mathematics For Machine Technology

8th Edition

ISBN:9781337798310

Author:Peterson, John.

Publisher:Peterson, John.

Chapter29: Tolerance, Clearance, And Interference

Section: Chapter Questions

Problem 8A

See similar textbooks

Similar questions

In recent years, a substantial amount of research has focused on a possible relationship between chemical contamination of various sorts and mental impairment in children. An article reported data on hair-lead concentration for a sample of mentally impaired children for which the cause of impairment was unknown. Sample statistics were n = 41 X Bar = 16 ppm s = 5.36 ppm The paper states that 14.27 ppm is considered the acceptable upper limit of hair-lead concentration. Let μ= the average hair-lead concentration for all mentally impaired children with the cause of impairment unknown. H0: μ = 14.27 versus H1: μ > 14.27 at 0.01 significance level Does the given sample data support the research hypothesis that true average hair concentration for all such mentally impaired children exceeds the acceptable upper limit? Assume normality. 1. reject null hypothesis 2. fail to reject null hypothesis
In a particularly small region in the Philippines, the consumer price index C depends on
A pharmaceutical company states that there is 500mg of active ingredient in each capsule for one of the medicines they manufacture. However, the FDA believes the company is purposely underfilling the capsule to save money. A sample of 20 capsules is taken and the amount of active ingredient inside is measured. The results are below: 484 460 471 512 494 529 494 485 474 502 503 538 466 495 475 529 518 464 449 489 Part 1: Construct a 95% confidence interval using toolPAK for the amount of active ingredient measured. Use the appropriate distribution, and specify the upper and lower limits of the interval. Part 2: Carefully interpret the 95% confidence interval? What if you did constructed a Confidence Interval Manually? Part 3: Does the 95% confidence interval support the FDA’s claim? Explain. Part 4: Would your answer change if the confidence level was lowered to 75%? Explain.
The Prevalence per 10,000 population of having health insurance for 1 (Table 5 box s. above) is: The Prevalence per 10,000 population of having health insurance for 2 (Table 5 box w. above) is:
Refer to Exercise 7. Assume that p = 4.3 ± 0.1 cm and q = 2.1 ± 0.2 cm. Estimate f, and find the relative uncertainty in the estimate.
The attached data contains Part Quality data of three suppliers. At = 0.05, does Part Quality depend on Supplier, or should the cheapest Supplier be chosen?
The brand manager for a brand of toothpaste must plan a campaign designed to increase brand recognition. He wants to first determine the percentage of adults who have heard of the brand. How many adults must he survey in order to be 95% confident that his estimate is within five percentage points of the true population percentage? Assume that a recent survey suggests that about 75% of adults have heard of the brand. N=?
A measurement scale that rates product quality as either 1 = poor, 2 = av average and 3 = good is known as: A) ordinal B) ratio C) interval D) nominal
In an attempt to reduce the growth of its population, China instituted a policy limiting a familyto one child. Rural Chinese suggested revising the policy to limit families to one son. Assumingthe suggested policy is adopted and that any birth is as likely to produce a boy as a girl, and thesuccessive births are independent, explain the following: (a) What would be the average family size? (b)What would be the ratio of newborn boys to newborn girls?
A salesperson purchased an automobile that was advertised as averaging 25 in the city and 40 on the highway. A recent sales trip that covered 1800 miles required 51 gallons of gasoline. Assuming that the advertised mileage estimates were correct, how many miles were driven in the city?
A glass manufacturing company wanted to investigate the effect of breakoff pressure and stopper height on the percentage of breaking off chips. The results are in the accompanying table. Complete parts (a) through (e). a. At the 0.01 level of significance is there an interaction between the breakoff pressure and the stopper height? b. is there an effect due to the breakoff pressure? c. is there an effect due to the stopper height? d. Plot the percentage breakoff for each breakoff pressure for each stopper height. e. Discuss the results of (a) through (d).
Periodically, the county Water Department tests the drinking water of homeowners for contminants such as lead and copper. The lead and copper levels in water specimens collected in 1998 for a sample of 10 residents of a subdevelopement of the county are shown below. lead (μμg/L) copper (mg/L) 4.44.4 0.4840.484 2.72.7 0.0760.076 5.35.3 0.5950.595 3.33.3 0.1280.128 5.55.5 0.4690.469 1.71.7 0.4060.406 0.40.4 0.8480.848 0.70.7 0.0220.022 44 0.860.86 2.82.8 0.4250.425 (a) Construct a 99% confidence interval for the mean lead level in water specimans of the subdevelopment. blank≤μ≤blank (b) Construct a 99% confidence interval for the mean copper level in water specimans of the subdevelopment. blank≤μ≤blank

SEE MORE QUESTIONS

Recommended textbooks for you

Mathematics For Machine Technology

Advanced Math

ISBN:

9781337798310

Author:

Peterson, John.

Publisher:

Cengage Learning,

Mathematics For Machine Technology

Advanced Math

ISBN:

9781337798310

Author:

Peterson, John.

Publisher:

Cengage Learning,

SEE MORE TEXTBOOKS