A certain percentage of items produced have some defects. To estimate the defect rate p, a collection of 100 items sampled from production revealed that 10 items contained such defects. 1. Formulate and test the appropriate null H0 and alternative hypotheses H1 to verify the claim that the defect rate is smaller than 0.15 at level α = 0.1  2. Find the P-value. Based on the P-value, can you reject H0 at level α = 0.01?

Q: The recidivism rate for convicted sex offenders is 14%.  A warden suspects that this percent is…

A: The random variable sex offending follows binomial distribution. The sample size is 319. The number…

Q: Is there a difference between men and women when it comes to seeking preventative healthcare? At the…

A:

Q: In manufacturing processes, it is of interest to know with confidence the proportion of defective…

A: The hypotheses for the test are given below. Null hypothesis: H0: p = 0.04 Alternative hypothesis:…

Q: 60% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Note- As per our policy we can answer only the first 3 sub-parts of a question. If you want…

Q: A new insecticide is advertised to kill more than 95% roaches upon contact.  In a laboratory test,…

A: From the provided information, level of significance (α) = 0.05 Sample size (n) = 400 Out of which…

Q: 20% of all college students volunteer their time. Is the percentage of college students who are…

A: Note- Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: 13% of all college students volunteer their time. Is the percentage of college students who are…

A: The provided information are:

Q: 51% of students entering four-year colleges receive a degree within six years. Is this percent…

A: 1. Denote p as the true population proportion of students entering four-year colleges receive a…

Q: privatized in Canada. In a random sample of 800 family physicians, 30% felt that the health care…

A: To determine whether the conditions are met, we can calculate the expected number of successes and…

Q: According to shopper data, 97% of households purchase toilet paper. An analyst believes this is too…

A: Power of the test is the measure of the efficiency of the test which is given by the probability of…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.02α=0.02.       Ho:p1=p2…

A: Given: x1 = 336 n1 = 690 x2= 295 n2 = 714 ∝ = 0.02 Thus, we have,…

Q: Example 3: BPA in Tomato Soup A consumer protection agency is testing a sample of cans of tomato…

A: Given: The protection agency that includes the consumer in testing the sample based on sample of…

Q: 56% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Note:Hey there! Thank you for the question. However, you have posted multiple questions together.…

Q: Suppose a test is to be performed of H₁: = 39 versus H₁:39 at the α = 0.05 significance level. A…

A: Given information Hypothesized mean µ = 39 Sample size (n) = 23 Mean x̅ = 41.1 Standard deviation…

Q: The null and alternative hypotheses would be: Ho: ? (please enter a decimal)…

A:

Q: The Congressional Budget Office reports that 36% of federal civilian employees have a bachelor's…

A: Note : Thank you for posting the question! Since your question has more than 3 parts, we have solved…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.005.       Ho:p1=p2…

A: Given data Sample size (n1) = 400 Successes of n1 (x1) = 249 Sample size (n2) = 362 Successes of n2…

Q: You wish to test the following claim (H0, Ha) at a significance level of α=0.01       Ho:p1=p2…

A:

Q: In a random survey of 500 doctors that practice specialized medicine, 20% felt that health care…

A: Data for sample 1 of specialized medicine doctors,The sample size The sample proportion Data for…

Q: ou wish to test the following claim (HaHa) at a significance level of α=0.005α=0.005.…

A: Given that n1=544p1=0.441n2=328p2=0.345α=0.005

Q: You wish to test the following claim at a significance level of  α = 0.001   H0: p1 = p2 Ha: p1 ≠…

A: Given information: For first population: The sample size is n1=796. The sample proportion is…

Q: Suppose in a bivariate tabular analysis you obtain a chi-square statistic of 12.614 with 4 degrees…

A: Since, the question to be answered is not mentioned, we'll be answering the first question only.…

Q: What can be concluded at the αα = 0.05 level of significance?

A: It is given that Sample size n = 343 Number of sex offender became repeat offenders, X = 24 Level of…

Q: A school reports that 80% of its graduates get jobs within one year. You take a random sample of 68…

A: From the given information, let X be the number of graduates got a job within one year. X = 50.…

Q: A simple random sample of size n= 200 drivers were asked if they drive a car manufactured in a…

A:

Q: You wish to test the following claim (HaHa) at a significance level of α=0.05α=0.05.       Ho:p1=p2…

A: Given: n1=280p1=0.186n2=465p2=0.142α=0.05

Q: Source SS df MS F Treatment 10301 Error 24000

A: Given data: In a particular completely randomized design, Number of experimental units, x = 6.…

Q: r is interested in the hypothesis testing problem H0 : µ = 373 vs µ 6= 373 where µ is the average…

A: a). Given: n=sample size=29           level of significance=α=0.10  We have,  Ho:μ=373H1:μ≠373 The…

Q: Step 2: Enter the critical value(s). (Round to 3 decimal places.) Step 3: Enter the test statistic.…

A: The information provided in the question are as follows : Null hypothesis and alternative hypotheses…

Q: Suppose there is a claim that a certain population has a mean, μ, that is less than 6. You want to…

A: a)   The population mean is μ.

Q: 53% of students entering four-year colleges receive a degree within six years. Is this percent…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: he management XYC Inc. wants to determine whether there is a signicant dierence in the average…

A: a. Denote μ1, μ2 as the true average length of time for Division 1 and 2, respectively.

Q: In a hypothesis test with hypotheses H.:u>74 and H, <74, a random sample of 40 elements selected…

A: We have to find critical value.

Q: A scientist studying local lakes claims that there is a linear relationship between a lake’s level…

A: It is given that, The null and alternative hypothesis are: Ho: β1=0 , ( There is not significant…

Q: 2. A new insecticide laboratory test, the immediately after contact. Is this sufficient evidence to…

A: An advertised new insecticide kill more than 95% roaches on contact. Population proportion p=0.95…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.01α=0.01.      Ho:p1=p2…

A: Test statistic for z-test:There are 73.8% successes in the sample of size 629 from the first…

Q: You wish to test the following claim (HaHa) at a significance level of α=0.02α=0.02.       Ho:p1=p2…

A:

Q: You wish to test the following claim (HaHa) at a significance level of α=0.02       Ho:p1=p2…

A: Let p1 denotes the population proportion of first sample. Let p2 denotes the population proportion…

Q: A sample is selected from a population with μ= 50. After a treatment is administered to the…

A: One sample t-test is determine statistical difference between unknown population mean and sample…

Q: B) In a sample of n = 50 people who recently received parking tickets, 36 were older than 25 years…

A: According to our policy, we can answer only first 3 part, for remaining please repost the question.

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.