A manufacturer produces a product to an AQL of 2% defectives with customers expecting LTPD of 7%. What values of sample size (n) and acceptance number (c) should the customers use to determine the quality of this lot of products? It is industrial practice to use α (alpha) = 5%, β (beta) = 10% with the following sampling plan table for computation. What sample size should be used? (Choose the closest integer) Group of answer choices 99 131 165 200 69
Q: A group of 11 students was selected at random and asked for their high school GPA and their freshmen...
A: Student High school GPA Freshman GPA 1 2 1.6 2 2.2 2 3 2.6 1.8 4 2.7 2.8 5 2.8 2.1 6 3.1...
Q: 5) The following results are from data where the dependent variable is SALARY, the independent varia...
A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts f...
Q: One-Sample T: Tst of μ - 34 vs not-34 Variable N Mean StDev SE Mean т P 16 35.274 1.783 b. 0.012 c. ...
A: Given that : Sample size (N)= 16 u = 34 Sample mean = 35.274 Standard deviation = 1.783 By using one...
Q: Consider the following frequency table of 50 observations on the random variable X: Value Observed 2...
A: The random variable X follows Chi-square distribution. We have to test whether the binomial distribu...
Q: Male Female Walk 16 24 Bike 19 11 Car 21 22 The table shown gives the results of a poll taken on cam...
A:
Q: Dom's Pizza Company uses taste testing and statistical analysis of the data prior to marketing any n...
A: *Answer:
Q: You may need to use the appropriate appendix table or technology to answer this question. Consider t...
A:
Q: Based on a poll, among adults who regret getting tattoos, 12% say that they were too young when t...
A: We have given that Probability of success p=0.12 Number of trials n=9 X~binomial ( n,p)
Q: Sadie predicted that chimps who had just moved to a new enclosure would start to socialize more afte...
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...
Q: The shaded area under the standard curve shown 0.3015. Determine z
A: Note: This probability value calculated from standard normal distribution table
Q: Describe (tell us about its shape, mean and standard deviation) the sampling distribution of the sam...
A: HERE GIVEN A variable of a population has a mean of μ = 100 and a standard deviation of σ = 28.
Q: The following model allows the return to education to depend upon the total amour both parents' educ...
A: Along with testing the effects of the two treatments in a factorial design, it is possible to test f...
Q: The value of a should reflect the consequences of incorrectly rejecting H, if it is true True False
A: Given that Level of significance (α) We know that Type I error : Rejecting the null hypothesis ...
Q: A catchment has six main gauge stations. In a year, the annual rainfall recorded by the gauges are a...
A:
Q: Assume the returns of a stock follow a normal distribution with a mean return of 18% and a standard ...
A:
Q: create a frequency distribution table using this formula 2, 4, 4, 4, 4, 5, 5, 5, 6, 6, 7, 7, 8, 8, 8...
A: Frequency Distribution: One particularly useful tool in grouping the data is the frequency distribut...
Q: In 2014, approximately 2% of hourly rate workers were being paid at the federal minimum wage level W...
A: The objective is to find out that an increase in the minimum wage has a greater effect on the mean o...
Q: Class Interval fx cf X- mean (x - mean)^2 f(x - mean)^2 Frequency Class Mark 95-99 3 90-94 85-89 10 ...
A:
Q: An article reports that in a sample of 124 nurses, 51 said that a busy workload had a positive effec...
A:
Q: Example 4.2. Suppose the joint distribution of X and Y is given by 1 P(X = x, Y = y) 42 ; (x + y²) (...
A: From the given information, PX=x,Y=y=142x+y2, I1,4xI-1,0,1,3y Consider, the two way table, Y|X 1...
Q: A random sample of 750 registered voters in Phoenix is asked if they favor the use of oxygenated fue...
A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for yo...
Q: If the class boundaries of a class are 17.5 and 26.5, then what is the class size? A 22 (в) 10 C) 8 ...
A:
Q: 1. Given u = 55, o = 2.15, find z value that correspond to the score of 60. 2. Given u = 80, o = 7, ...
A: Note: "Since you have posted a question with multiple sub -parts, we will solve first three sub part...
Q: The following model allows the return to education to depend upon the total amount o both parents' e...
A: From the given information, logwage=β0+β1educ+β2educ.pareduc+β3exper+β4tenure+u a) Let us consider t...
Q: If X is a discrete random variable with the distribution function p(x) = 3-*; x = 1,2,3 ... Prove th...
A: Given that the distribution function of the discrete random variable X as px=3-x ; x=1, 2, 3 ... .....
Q: In a Gallup poll of 500 people in country of Starland in 2020, 45% answered “yes” to the question, ...
A:
Q: Calculate Quartile Deviation and its Coefficient from the following data : Weight (in pounds) 120 12...
A:
Q: Directions: Make a sketch for each of the 3 areas under the normal curve as stated in the empirical ...
A: since, we need to draw the 3 areas under the normal curve as stated in empirical rule. Note: eggshel...
Q: A researcher is interested in the effect of a drug on sy tolic blood pressure. In a random sample of...
A: We have given that Sample size n =28 Mean difference Mdiff= -9.3 standard deviation difference sdi...
Q: A survey of 36 people was conducted to compare their self-reported height to their actual height. Th...
A:
Q: nation ol a nut s nole plably probability that the screw will not fit. Suppose that n= 20 and s = 0....
A: Given Information: Sample size n=20 Sample standard deviation s=0.008 (a) The parameter of Interest...
Q: • If the lines of regression of Y on X and X on Y are respectively = 0 and a,x + b¡y + c, azx + b2y ...
A:
Q: The total nitrogen (TN) concentration (mg/L) is one of the important indicators for a water sample. ...
A: Here sample is given, Xi: 21, 23, 30, 28, 22, 27, 32, 35 Sample size is n= 8 Null hypothesis...
Q: 1. How many students like Spider-Man but do not like Dark Knight? 41 2. How many students like Dark ...
A: Here use venn diagram to represent the given information
Q: Suppose IQ scores are approximately normally distributed with a mean of 100 and a standard deviation...
A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15 X~N (100, 15) X be the ran...
Q: The amount of money spent on online foods by customers at an online restaurant follows a normal dist...
A:
Q: You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01. Ho:p1=p2...
A: We have given Sample sizes n1=399 , n2=349 Favorable cases x1=215 , x2=212
Q: study indicates that 18- to 24- year olds spend a mean of 115 minutes watching video on their smar...
A:
Q: In the normal distribution, 68.3% of the values are within three standard deviations of the mean. In...
A: Empirical rules:1) 68% of the data values lies within one standard deviationsof the mean.i.e P(μ-σ&l...
Q: An SRS of 190 flights of a large airline (call this airline 1) showed that 160 were on time. An SRS ...
A:
Q: Imagine you are interested in the effect of violence in the video games kids play and the level of a...
A: Given: One is interested in the effect of violence in the video games kids play and the level of agg...
Q: A school is interested in whether a personal appeal to parents will influence the money they give to...
A: Givensample size(n)=100Mean(x)=27.50 dollarsstandard deviation(s)=40 cents = 0.40 dollarsα=0.01
Q: please show work to understand :) A gambler is going to play a gambling game. In each game, the ...
A: Given information: A gambler is going to play a gambling game. In each game, the chance of winning $...
Q: Which of the following data falls under interval scale of measurement? A Weight in pounds B Intellig...
A: Interval scale of measurement is used for quantitative data where the difference between two observa...
Q: 25. The random variables X and Y have the joint probability function f(x, y) = K(4- x- y); 0<x<2; 0<...
A:
Q: Two samples are taken with the following sample means, sizes, and standard deviations ¯x1x¯1 = 24 ¯x...
A:
Q: Each member of a random sample of 19 business economists was asked deviation 1.8%. predict the rate ...
A:
Q: Suppose B is a Brownian motion. Please answer the following questions, justifying your answers: a. F...
A: Given that B is a Brownian motion.
Q: A normal distribution has known population mean 50 and a variance of 4. Probabilities where the samp...
A: Introduction: The table given in the question provides the probabilities P (S2 ≥ 7.50) and P (S2 ≤ 2...
Q: 1. What is the value of n? 2. What is the value of of the summation of product of X and Y? 3. what i...
A:
A manufacturer produces a product to an AQL of 2% defectives with customers expecting LTPD of 7%. What values of
What sample size should be used? (Choose the closest integer)
Group of answer choices
99
131
165
200
69
Step by step
Solved in 2 steps
- What is meant by the sample space of an experiment?When companies are designing a new product, one of the steps typically taken is to see how potential buyers react to a picture or prototype of the proposed product. The product-development team for a notebook computer company has shown picture A to a large sample of potential buyers and picture B to another, asking each person to indicate what they "would expect to pay" for such a product. The data resulting from the two pictures are provided in file (sheet 6). Using the 0.05 level of significance, determine whether the prototypes might not really differ in terms of the price that potential buyers would expect to pay. Sheet 6 ComputerA ComputerB 3 317 2 965 2 680 3 083 3 286 3 137 2 859 2 950 2 693 3 161 2 945 2 918 2 908 3 158 3 193 3 082 3 240 2 903 3 040 3 103…A researcher used a sample of n = 50 individuals to determine whether there are any preferences between two new designs for a smartphone. If the data produce a chi-square statistic of X^2 = 6.00, what decision should the researcher make (indicate df and decisions with a=.05 and a =.01 by reporting critical values)
- A student decides to spin a dime and determine the proportion of times it lands on heads. The student spins the dime 25 times and records that it lands on heads 17 times. Let p = the true proportion of times the dime would land on heads when spun. Under the assumption that the true proportion is 0.5, 100 simulated proportions for samples of size 25 is shown in the dotplot. Using the dotplot, is there evidence that the proportion of times a spun dime lands on heads is greater than 0.5? A) Yes, a proportion of 0.68 proves that the true proportion of heads is greater than 0.5. B) Yes, a proportion of 0.68 only occurred once out of 100 simulated proportions; therefore, there is sufficient evidence that the true proportion of heads is greater than 0.5. C) No, a proportion of 0.68 is only 0.18 more than 0.5; therefore, there is insufficient evidence that the true proportion of heads is greater than 0.5. D) No, a proportion of 0.68 or more occurred 7 times out of 100 simulated…The mean ±1 sd of ln [calcium intake (mg)] among 25females, 12 to 14 years of age, below the poverty level is6.56 ± 0.64. Similarly, the mean ± 1 sd of ln [calcium intake(mg)] among 40 females, 12 to 14 years of age, above thepoverty level is 6.80 ± 0.76.1- Test for a significant difference between the variancesof the two groupsA trucking firm is considering the installation of a new, low-restriction engine air filter for its long-haul trucks, but doesn’t want to make the switch unless the new filter can be shown to improve the fuel economy of these vehicles. A test is set up in which each of 10 trucks makes the same run twice once with the old filtration system and once with the new version. Given the sample results shown below, use the 0.05 level of significance in determining whether the new filtration system could be superior. Truck Number Current Filter (mpg) New Filter (mpg) 1 7.6 7.3 2 4.1 7.2 3 10.4 6.8 4 6.9 10.6 5 5.6 8.8 6 7.9 8.7 7 5.4 5.7 8 5.7 8.7 9 5.5 8.9 10 5.3 7.1 Do reject or fail to reject H0?
- A study was performed on 200 elementary school students to investigate whether regular Vitamin A supplementation was effective in preventing colds during the month of March. 100 were randomized to receive daily Vitamin A supplements during the month of March, and 100 students were randomized to a placebo group (and did not receive Vitamin A) during the same month. The number of students getting at least one cold in March was computed in the two groups, and the results are given in the following 2 X 2 table. Using a 5% level of significance determine whether there is an association between Vitamin A supplementation and prevention of Common Cold ColdNo Cold Vitamin A1585100 Placebo2575100 40160200A trucking firm is considering the installation of a new, low-restriction engine air filter for its long-haul trucks, but doesn’t want to make the switch unless the new filter can be shown to improve the fuel economy of these vehicles. A test is set up in which each of 10 trucks makes the same run twice once with the old filtration system and once with the new version. Given the sample results shown below: Truck Number Current Filter (mpg) New Filter (mpg) 1 7.6 7.3 2 4.1 7.2 3 10.4 6.8 4 6.9 10.6 5 5.6 8.8 6 7.9 8.7 7 5.4 5.7 8 5.7 8.7 9 5.5 8.9 10 5.3 7.1 If the null and alternative hypotheses can be used to decide whether the new filtration system could be superior. Calculate the standardized test statistic.A study, which randomly surveyed 3,700 households and drew on this information from the IRS, found that 79% of households have conducted at least one IRA rollover from an employer-sponsored retirement plan. Suppose a recent random sample of 90 households in a certain county was taken and respondents were asked whether they had ever funded an IRA account with a rollover from an employer-sponsored retirement plan. Based on the sample data below, can you conclude at the 0.10 level of significance that the proportion of households in the county that have funded an IRA with a rollover is different from the proportion for all households reported in the study? 77 respondents said they had funded an account; 13 respondents said they had not
- An investigator hypothesizes that the improvement rate associated with a placebo is P1 = 0.45, and that the improvement rate associated with an active drug is P2 = 0.65. The plan is to perform a two-tailed test. Use SAS to complete each problem below. (a) If a significance level 0.01 and a power of 0.95 are desired, how large a sample per treatment must he study? (b) How large must the sample size be if the significance level is relaxed to 0.05 and the power to 0.85? (c) For this study, suppose that you have funds to recruit 130 patients per group. What is the power for a 5% level test for this sample size? First do the computation by hand and then use SAS to confirm.A large manufacturing company investigated the service it received from its suppliers and discovered that, in the past, 44% of all material shipments were received late. However, the company recently installed a just-in-time system in which suppliers are linked more closely to the manufacturing process. A random sample of 170 deliveries since the just-in-time system was installed reveals that 34 deliveries were late. If we want to test whether the proportion of late deliveries was reduced signicantly at = 0:01 the null and alternative hypotheses are a. Null hypothesis (H0) b. Alternative hypothesis (HA)The manufacturer of a new racecar engine claims that the proportion of engine failures due to overheating for this new engine, (p1)(�1), will be no higher than the proportion of engine failures due to overheating of the old engines, (p2)(�2). To test this statement, NASCAR took a random sample of 235235 of the new racecar engines and 190190 of the old engines. They found that 2424 of the new racecar engines and 1111 of the old engines failed due to overheating during the test. Does NASCAR have enough evidence to reject the manufacturer's claim about the new racecar engine? Use a significance level of α=0.1�=0.1 for the test.