Fifty parts are tested for 500 cycles each. When a part fails, it is replaced by another one. At the end of the test, 5 parts had failed. What is the failure rate?

Q: There are 5000 observations in a data set. 10% of the data are “1”s, while the rest are “0”s. If we…

A: The data set consist of 5000 observations. The observations are 0's and 1's. An amount of data…

Q: The critical value of chi-square is what when degrees of freedom equal 9 and a equals .0

A: We know that the, There is a chi-square table that provides the critical value of chi-square based…

Q: Around 400,000 new cases and more than 4,000 deaths have been reported on many days in May" A.With…

A: Given information: Around 400,000 new cases and more than 4,000 deaths have been reported on many…

Q: 55 randomly selected students were asked the number of pairs of shoes they have. Let X represent the…

A: We have given that Number of pairs of shoes  Frequency  4 3 5 8 6 5 7 6 8 2 9 3 10…

Q: Persons having Raynaud's syndrome are apt to suffer a sudden impairment of blood circulation in…

A: Data for suffers persons,The sample size is The sample mean  is The population standard deviation is…

Q: if the real value of certain experiment is xreal=1.98 and we take 5 messurements whose values are…

A: Given values are, x1=2x2=2.01x3=1.99x4=1.97x5=2.02

Q: A group of 120 students sat a history exam. The cumulative frequency graph shows the scores obtained…

A: From the given cumulative frequency graph, we need to find required answers.

Q: The yield of a chemical process in tonnes is measured under 4 different sets if operating…

A: The yield of a chemical process in tonnes is measured under 4 different sets of operating…

Q: It is argued that more time spent studying will result in improved course marks among ECO242…

A: a. The coefficient of determination, denoted as r2, represents the proportion of the total sum of…

Q: A viral infection is spread by contact with an infected person. Suppose that an infected person has…

A: Here we want to find minimum number of cases for higher than 25%

Q: What happens to the range of values you obtain as the number of beans in the sample increases? If…

A: As the number of the beans in a bag increases the standard deviation decreases. So if 15 bean…

Q: At Center Hospital there is some concern about the high turnover of nurses. A survey was done to…

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

Q: A die is rolled 7 times. Let S be the sum of the numbers observed. What is the value of E(S)?

A: Lets Assume we have a 6 faced unbiased dice :

Q: alpha should be used? 4. Can you say with 95% confidence that Store 1 is producing sub sandwiches…

A: The data shows the sandwich measurements for three stores.

Q: The Table below represents volume and trip cost data from which you are asked to determine the…

A: To find: The volume of drivers paying the optimum toll,  Given Data:

Q: You are doing a Kruskal Wallis test on the energy consumption of different air conditioners. You…

A: Solution: Given information: k = 3 groups n = 23 total observarion  ∑i=1kRi2ni= 11698.42

Q: Alcohol use in the United States increased during the first year of the COVID pandemic, as did the…

A: The bar graphs for the rates of alcohol-induced deaths for males and females are given.

Q: The flavour of juicy fruit is said to last on average 2 minutes. A consumer product reseacher wanted…

A: Solution-: Given: μ0=2 Test the  hypotheses at the 5% level of  using the following 5 step…

Q: Marcela and Lorenza agreed to go under one-month observation period. During the time, the fashion…

A: A continuous random variable X is said to follow Uniform distribution with parameters a and b, if…

Q: (b) Compute R,². The adjusted multiple coefficient of determination is denoted by R. This adjusted…

A: Solution 1) The estimated regression equation given below was constructed from 30 observations n=30…

Q: To determine whether high blood pressure affected whether a person had a stroke, a sample of 132…

A: Claim: Test the hypothesis that at least 32% of the people who have had strokes have had high blood…

Q: (i) Define the parameter of interest to the researcher (ii) State the Null and Alternative…

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

Q: We travelled back in time and discover the true reason that dinosaurs went extinct-they started…

A: Given: Total dinosaurs=3797Number of dinosaurs smoked=2341Number of dinosaurs who smoked and died of…

Q: Suppose you have four classifications: freshmen (f), sophomore (so), junior (j), and senior (se).…

A: Solution.

Q: the critical value of chi-square is what when degrees of freedom equal 4 and a equals .05.?

A: We have to find critical value..

Q: 3. Did blood type A or blood type O contribute more to the test statistic? OA. type A оB. type O 4.…

A: We want to find the chi square, df, and p value.

Q: Answer the following 4 following parts to the problem? Please explain how you recieve the varience…

A: Step 1: Click STAT and then ENTER  Fill the values of x and p(x)  click STAT again and then click…

Q: (b) The estimated stress level for working at ABC was obtained from a few, not many, reviews on the…

A: as according to question, estimated stress level for working at ABC is based on small number of…

Q: NASA is conducting an experiment to find out the fraction of people who black out at G forces…

A: The random sample size is, n = 251 The no.of people who passed out at G forces greater than 66 is, x…

Q: If you have 3x3 frequency table, then the critical value of chi-square would be based on what…

A: We know that the, If there is r*s frequency table or contingency table then the degree of freedom…

Q: An article published by the American Meteorological Society, gives a rating system used to classify…

A:

Q: . To investigate the tradeoff between time to work and time to sleep, the following equation is…

A: Given  Level of significance=0.05, tcrititcal=1.96

Q: Math Score(x) 4 7 10 13 16 Frequency(f) 4 <cf 2. 6. 3.

A: Less than cumulative frequency be the sum of all previous frequencies to the current frequency of…

Q: For each situation, state the null and alternative hypotheses: (Type "mu" for the symbol u, e.g. mu…

A: Given information- We have given the 2 situations, we have to find the null and alternate…