Suppose that a single-sampling plan with n=50 and c=1 is being used for receiving inspection where the supplier ships the product in lots of size N=3,000, If the lot fraction defective is p = 0.02. Determine the probability of rejecting the lot.
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- What are the potential outliers given that Q1 = 6, Q2 = 13, Q3 = 22, and the IQR = 16The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 11 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 76, 78, 77, 67, 63, 79, 50, 63, 70, 63, 66 What can be concluded at the the a = 0.01 level of significance level of significance? a. For this study, we should use Select an answer b. The null and alternative hypotheses would be: Ho: ?v Select an answer Hj: ? vSelect an answer v c. The test statistic ? v (please show your answer to 3 decimal places.) d. The p-value = (Please show your answer to 4 decimal places.) e. The p-value is ? va f. Based on this, we should Select an answer |the null hypothesis. g. Thus, the final conclusion is that ... O The data suggest the populaton mean is significantly lower than 74 at a = 0.01, so…A box contains 5 balls. Two are numbered 3, one is numbered 4, and two are numbered 5. The balls re mixed and one is selected random. After a ball is selected, its number is recorded. Then it replaced. If the experiment is repeated many times, find the mean of the numbers on the balls(round off uour final answer to decimal places
- Suppose you rolled a fair six-sided die a few times and recorded the results. (You would have a collection of numbers 1-6.) Now, suppose you wanted to average these numbers. What value would you expect? If the die was rolled 6 times and the results were: 1, 4, 2, 2, 3, 2, then the average of this sample of rolls would be 2.333. This experiment could be peformed again: 6, 5, 2, 1, 1, 4. Now, the average of this sample is 3.167. Obviously, these small samples have a lot of variation in them; however, is there a way to calculate the expected average? If we were to construct a very large sample, rolling this die 1 million times, what would the expected value (mean) be? Luckily, the rules of probability allows us to do this calculation without actually having to roll the die 1 million times! Below, you will find a probability table where all of the possible outcomes from the die are listed. The first column contains the possible outcomes on the die, the second column contains the…The average final exam score for the statistics course is 74%. A professor wants to see if the average final exam score for students who are given colored pens on the first day of class is lower. The final exam scores for the 12 randomly selected students who were given the colored pens are shown below. Assume that the distribution of the population is normal. 51, 86, 77, 86, 66, 59, 66, 76, 55, 59, 57, 80 What can be concluded at the α = 0.10 level of significance? For this study, we should use Select an answer t-test for a population mean z-test for a population proportion H0:H0: ? μ p Select an answer = ≠ > < H1:H1: ? p μ Select an answer = > < ≠ The test statistic ? t z = (please show your answer to 3 decimal places.) The p-value = (Please show your answer to 4 decimal places.)c) A simple random sample of 200 names from a list of 3042 names and addresses wereinvestigated and the record shows that 38 had wrong addresses. i. Estimate the total number of addresses that needs correction Compute the standard error of your estimate in (i) above .
- To get a sample of 50 students for a student services survey, an assistant principal uses the calculator command "randInt(1,72,5)" to pick five numbers between 1 and 72. He goes to those five pages in the 72-page directory and chooses the ten students pictured on each of those five pages. Will this sampling strategy result in a random sample from the population under consideration?In simple random sampling, it is also true that each member of the population is equally likely to be selected, the chance for each member being equal to the sample size divided by the population size. Show that this fact is also true for stratied random sampling with proportional allocation.I have a group with 6 members from my family.I've weight 52 kg,my father weight 63 kg,my younger brother weight 35 kg,my cousin weight 38 kg,my uncle weight 72 kg. and my eldest brother weight 55 kg.Consider samples of size 4 that can be drawin from this population. To Do: Draw the histogram for the sampling distribution of the sample means.
- A manager chooses 2 months of the year during which to have training. What is the size of the sample space in this experiment?Suppose I want to sample the household incomes for EBR parish. Let's say I start with a simple random sample of 100 residents and calculate the sample mean. How would the sampling distribution of change if I increase the sample size to 1,000 residents?