A company creates wooden furniture to be sold at various retailers. This company claims that only 2.59% of their furniture are defective in some manner. Monicawould like to test this claim to see if the actual percentage of furniture that is defective is different than the company claims, using a = 0.01. She takes a sampleof 890 pieces of furniture, and observes that 47 of these furniture pieces are defective. Assume a normal sampling distribution.(a) What are the null and alternative hypotheses?Но: р0.0259 +HẠ: P0.0259 +(b) What is the test statistic? (Round your answer to 2 decimal places, if needed.)(c) Using the statistical table, what is the p-value? (Round your answer to 4 decimal places, if needed.)(d) Based on the p-value, Monica should rejectthe null hypothesis.(e) This data providessufficient evidence to conclude that the actual percentage of furniture that is defective is different than the company claims.

Given : Sample size (n) = 890 Let X : No. of defective furniture pieces X = 47 Significance level…

Answered: A company creates wooden furniture to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Q8. Please help.
A sports magazine reports that the mean number of hot dogs sold by hot dog vendors at a certain sporting event is equal to 150. A random sample of 50 hot dog vendors was selected, and the mean number of hot dogs sold by the vendors at the sporting event was 140. For samples of size 50, which of the following is true about the sampling distribution of the sample mean number of hot dogs sold by hot dog vendors at the sporting event? For all random samples of 50 sporting events, the sample mean will be 150 hot dogs. A For all random samples of 50 hot dog vendors, the sample mean will be 140 hot dogs. B The mean of the sampling distribution of the sample mean is 150 hot dogs. C The mean of the sampling distribution of the sample mean is 140 hot dogs. D All random samples of 50 hot dog vendors will have a sample mean within 10 hot dogs of the population mean. E Chose A, B, C, D, or E
An exclusive school in Manila made a study on the relationship of age and teaching performance of teachers as evaluated by the students using the 5-point scale, where 5 is the highest. With a random sample of 16 teachers, test if the relationship is significant using the 0.05 level. The result of the sampling is shown below: Teacher No. 1234 3456NHO 60095 7 8 10 11 12 13 14 15 16 Age (x) 38 30 37 42 45 528 mo 52 48 33 36 32 950 49 48 56 30 44 43 Performance (y) 3.89 4.12 4.05 3.61 3.08 2.58 3.42 4.47 4.68 4.39 2.96 3.01 2.80 4.34 3.67 3.55
If the population of ABM students of Malaya Integrated High School has a mean of 12.45,what is the mean of the sampling distribution of its mean?(HINT:?=?̅ )
Consider the following sample of 5 observations. -9, 6, 743, 8, 15 There is one outlier. Suppose we wish to remove the outlier from the calculations and calculate the variance of the remaining values. What would the value of the variance be?
What proportion of drivers would you expect to fail a driving test in a sample of size 10? Size 20? Size 40? Size 100?
Consider the data below. Three random samples in different cities were selected. Water use per household per day were measured. City 1 City 2 City 3 70 66 66 70 64 66 55 45 54 60 41 61 65 58 65 45 44 65 55 46 Test the claim that the samples come from populations with the same mean. Assume all requirements have been met. Use a 5% level of significance. Identify the tail of the test. [ Select ] Find the P-value. I [ Select ) Will the null hypothesis be rejected? Select] Do the populations appear to have the same mean? [Sclect
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This C The weight of an organ in adult males has a bell-shaped distribution with a mean of 310 grams and a standard deviation of 40 grams. Use the empirical rule to determine the folowing (a) About 99.7% of organs will be between what weights? (b) What percentage of organs weighs between 230 grams and 390 grams? (c) What percentage of organs weighs less than 230 grams or more than 390 grams? (d) What percentage of organs weighs between 270 grams and 430 grams? (a) and grams (Use ascending order.) (b)% (Type an integer or a decimal.) (c) % (Type an integer or a decimal.) (d) % (Type an integer or decimal rounded to two decimal places as needed.) Enter your answer in each of the answer boxes. e Type here to search 近
Listed below are the lead concentrations (in µg/g) measured in different Ayurveda medicines. Ayurveda is a traditional medical system commonly used in India. The lead concentrations listed here are from medicines manufactured in the United States. Assume that a simple random sample has been selected. Use a 0.01 significance level to test the claim that the mean lead concentration for all such medicines is less than 14.0 μg/g. 2.95 6.46 6.00 5.46 20.49 7.51 12.02 20.45 11.50 17.54 Identify the null and alternative hypotheses. Ho H₁: (Type integers or decimals. Do not round.)
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One cable company claims that it has excellent customer service. In fact, the company advertises that a technician will arrive within 45 minutes after a service call is placed. One frustrated customer believes this is not accurate, claiming that it takes over 45 minutes for the cable technician to arrive. The customer asks a simple random sample of 25 other cable customers how long it has taken for the cable technician to arrive when they have called for one. The sample mean for this group is 47.9 minutes with a standard deviation of 7.6 minutes. Assume that the population distribution is approximately normal. Test the customer's claim at the 0.01 level of significance. Step 1 of 3: State the null and alternative hypotheses for the test. Fill in the blank below. Ho : μ = 45 Ha:μ 45

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