A manufacturer receives a shipment of 500 spare parts from a supplier who claims that the lengths of the spare parts are approximately normally distributed having a mean of 2.5 cm and standard deviation of 0.04 cm. If the manufacturer takes a 10% random sample from the shipment, what is the probability that he gets a mean length of: a.More than 2.22 cm? b.More than 2.40 cm? c.Between 1.80 cm and 2.40 cm?

Q: Part 4 of 6 (c) Find the probability that the proportion of individuals in the sample of 65 who have…

A: Given p=0.23, n=65

Q: Find the first quartile (Q1), second quartile (Q2), and third quartile (Q3). If Baby A weighs 7.98…

A: The following are weights (in pounds) of newborn babies in a certain hospital in a period of 1 week:…

Q: 3. The student council at a local high Simple Random Sample school is collecting data to determine…

A: It is needed to selected the proper sampling method.

Q: 5. Suppose X is the number of successes in a random sample of size n from a large population with a…

A:

Q: Q3 – The random variable x has the following discrete probability distributio: 1 3 4 p(x) 0.05 0.25…

A:

Q: Question 6 Points 1 Compute the probability of getting face 1 when we roll a die.

A:

Q: In a village, power cuts occur randomly at a rate of 3 per year. Find the probability that in a…

A:

Q: According to an airline, flights on a certain route are on time 80% of the time. Suppose 20 flights…

A:

Q: Determine the area under the standard normal curve that lies between (a) Z= -1.39 and Z= 1.39, (b)…

A:

Q: According to an airline, flights on a certain route are on time 80% of the time. Suppose 20 flights…

A:

Q: Ages Number of students 15-18 5 19-22 9 23-26 8 27-30 6 31-34 4 35-38 4 Based on the frequency…

A:

Q: In a survey, 20 people were asked how much they spent on their child's last birthday gift. The…

A: Solution-: Given: x¯=35,n=20,s=16,α=0.10 We want find a 90% C.I.

Q: In the 2004 presidential election, exit polls from the critical state of Ohio provided the following…

A:

Q: The third worksheet labeled sample B is a simple random sample with replacement, with seven…

A: Population standard deviation(σ)=4 Sample size(n)=7 The given observations are…

Q: Which of the following is not a characteristic of a normal distribution? A The mean, median, and…

A:

Q: Determine if assumptions have been violated and if a between-subjects, one-way ANOVA can be…

A: Given: There are three different artificial hips. Manufacturer X makes hip joints out of metal,…

Q: 4. A hypothesis will be uked to test that a population mean equals 10 against the alternative that…

A: Assume that µ is the population mean.

Q: 中 The graph of the discrete probability to the right represents the number of live births by a…

A: From graph Probability mass function of X is  x 1 2 3 4 5 6 7 P(X=x) 0.238 0.279 0.168 0.115…

Q: A consumer products company is formulating a new shampoo and is interested in foam height (in…

A:

Q: Which are the correct null and alternative hypotheses?

A: Test is that whether the average grade of the students is less than 90.

Q: Transportation engineers determined that to help ease traffic, they would set up tolls for solo…

A: The type of the considered variable and the appropriate hypotheses that involve the "average no. of…

Q: 4) What fraction of -1.20 to li4 o? Populalion for tor a gaussion datribution lies within a

A: Considering the distribution of interest has been specified as gaussian (otherwise known as the…

Q: Age(x) 8 15 22 27 34 40 Sleep (y) 8 8 7 7 6.

A: The given table is x y 8 8 15 8 22 7 27 7 34 5 40 6

Q: Assume that we want to construct a confidence interval. Do one of the​ following, as​ appropriate:…

A: We know that ,if population standard deviation (σ) is  known then we use z-distribution to construct…

Q: 5.The weights of adult males are normally distributed with mean of 172 pounds and a standard…

A:

Q: Which of the following are examples of p-hacking? (Choose all that apply.) a. An exhausted…

A: p-hacking is a practice when a researcher, either knowingly or unknowingly manipulates the p-value…

Q: One study of grand juries in Alameda County, California, compared the demographic characteristics of…

A:

Q: 4 4 3 3 0 16 0 6 5 3 4 2 2 5 5 6 1 1 0 6 5 0 3 7 3 4 3 6 1 2 3 8 15 15 14 15 4 13 16 12 10 16 15…

A: The objective is to construct the frequency distribution for the given data.

Q: The first worksheet labeled sample A (in the Excel file linked below the exam) is a sample of n=50…

A: From the given information, the sample has n=50 observations with measurements of a binary variable…

Q: 3. Suppose eight coins are tossed simultaneously. If the random variable X denotes the number of…

A: I solved exactly first question because of bartleby policy if you want more please upload…

Q: The following graph represents the results of a survey, in which a random sample of adults in a…

A:

Q: The probability that in your statistical decision you made a Type I error is O less than 1 percent O…

A: Correct answer is ( a ) that is less than 1 % The probability of making a type I error is α, which…

Q: Discuss the advantages and disadvantages of including neutral, middle alternatives in response…

A:

Q: Rusiness owners on Suffern Main street claim that the mean peed of automobiles traveling on their…

A:

Q: 91 88 93 95 95 85 89 93 89 91 91 92 89 89 84 87 88 88 89 93

A: given data : 91,88,93,95,95,85,89,93,89,91,91,92,89,89,84,87,88,88,89,93 from the above…

Q: A concrete mix is designed to withstand 3000 pounds per square inch (psi) of pressure. The following…

A: For the given data Find Mean =? Median =? Mode =?

Q: Example 3: Last year, the population mean of electric energy consumption in city A was 150kwh/month.…

A: Claim : the population mean of electric energy consumption decrease.

Q: The following are the average grade of a sample of 20 Senior High School students for the first…

A:

Q: paired sample data, and assume that the samples are simple random es and that the differences have a…

A: Given Level of significance=0.01

Q: In response to concerns about nutritional contents of fast foods, McDonald's announced that it would…

A:

Q: A foreign student club lists as its members 3 Canadians, 2 Japanese, 4 Italians, and 3 Germans. If a…

A:

Q: Congratulations. You have just inherited your uncle's business, which is a clothing store. A…

A: Hello! As you have posted more than 3 sub parts, we are answering the first 3 sub-parts.  In case…

Q: The sum of the probabilities in a discrete random probability distribution varies from distribution…

A: Given: The sum of the probabilities in a discrete random probability distribution varies from…

Q: A telephone poll of 841 adult Americans was reported in an issue of Time Magazine. One of the…

A:

Q: a.) What's the alternative and null hypothesis? b.) What's the test statistic and degrees of…

A: The number of categories k is 5.

Q: hree vears ago, the mean price of an existing single-family home was $243,733. A real estate broker…

A: Test is that whether the mean price is greater than $243,733.

Q: Assume that you reject the null hypothesis of no-difference at a=0.05. This means that if you assume…

A: Statisticians use the conventional p-value method to conduct hypothesis testing.

Q: L12Q2.The average scores of students in the final exam in two neighboring colleges are equal. If a…

A: Testing of hypothesis is a rule which, when the sample values have been obtained, leads to a…

Q: A certain virus infects one in every 300 people. A test used to detect the virus in a person is…

A:

Q: what is the sample standard deviation and the computed value of the test statistic

A: given data :…