The marks obtained in mathematics by 1000 students are normally distributed with mean 78% and standard deviation 11%. Determine what was the highest mark obtaiamed by the lowest 10% of the student?

Q: 2. USA Today reported that the state with the longest mean life span is Hawaii, where the population…

A: The output is given as:

Q: A. Determine the percentage and number of samples for each stratum using proportional allocation.…

A: a. The provided information is  Program Population(N=180) Percentage Sample size (n=50)…

Q: Solve The Following items and show your solution. 1. The weight of goats at a farm is normally…

A: Hello! As you have posted 2 different questions, we are answering the first question. In case you…

Q: Solve

A: Given: v = 15 To find:

Q: Stress at work: In a poll conducted by the General Social Survey, 81% of respondents said that their…

A: Given that, In a poll, 81% of respondents said their jobs were sometimes or always stressful.…

Q: You are a researcher studying the lifespan of a certain species of bacteria. A preliminary sample of…

A: We have given that, Mean (x̄) = 64, standard deviation (σ) = 5.2, margin of error (E) = 0.55  and…

Q: The table  shows how students performed based in their gender. Use the table to answer the following…

A: 1. The probability that the student got an A grade or is female is, PA grade or female=PA…

Q: Assume that a sample is used to estimate a population proportion p. Find the 99.9% confidence…

A:

Q: Page-2 Therefore, lo0 - l00 Pl95-l00 i5/530 ヌール i5/530 =P(-1·83)< z o) = P(2<0) -P(ZZ -1-83) From…

A:

Q: Practice Task • A final examination given to 47 students resulted to the following grades 26 82 82…

A: Range is a measure of dispersion and is calculated as the difference between the highest and lowest…

Q: The following table contains information on the amount of time spent each day (on average) on social…

A: (a) Obtain the 98% confidence interval for slope B The 98% confidence interval for slope B is…

Q: Find the critical value z, necessary to form a confidence interval at the level of confidence shown…

A: It is given that Level of confidence = 0.92

Q: Example 63. Find the present value of a sequence of payment of Rs 125 made at the end of each…

A:

Q: A die is weighted such that an even number is twice as likely to come out as an odd number. If the…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: According to the graph below, what is y when x is 4? 1. 3   6   4   5

A: Given that : A scatter plot is given here by using the information from graph we solve this problem.…

Q: 1. The following values are the scores of 10 Grade 11 Statistics and Probability students in their…

A:

Q: I want to assess whether or not students produce more stress hormones (cortisol) after watching…

A: Given claim: The hypothesis that saliva cortisol levels will be different between the two genres of…

Q: no handwriting please  A soda company has found in the past that 2% of their soda does not meet the…

A: Solution: 1) The random variable of interest is  Let X  be the number of soda bottles does not meet…

Q: The project manager has obtained a non-uniform distribution of resources all along the project. She…

A: The main demands of the Resource Planning Manager are: 1 to optimize the use of resources 2 to…

Q: 1. A jar contains numbers 0, 1, 2 and 3. Construct the sampling distribution of the sample means…

A: If the probability of getting selected for each outcome is equal then such outcomes can be termed as…

Q: I want to study whether or not distractions in the environment will affect memory performance. I…

A: There are two independent samples which are distraction free environment and environment with…

Q: Answer the following problems. 1. Find the values of t for which the area on the right tail of the…

A: Given: 1. Area on the right tail of the distribution is 0.05 2. degrees of freedom (df)=18 3. Sample…

Q: From the following annual average prices of the three commodities given in rupees per unit find the…

A:

Q: . It is known that the student score data in a class is as follows:     9, 8, 6, 7, 7, 8, 5, 3, 6,…

A:

Q: Given the following data : Year : 1992 1993 1994 1995 1996 1997 1998 Weekly take home Pay (Rs.):…

A:

Q: Consider the population described by the probability distribution shown in the table. The random…

A:

Q: 6. The amount of kerosene, in thousands of liters, in a tank at the be ginning of any day is a…

A: All are different questions I am solving first one

Q: Joe, a DOH COVID-19 tracker, found out that the number of infected persons of COVID-19 in seven…

A: Let all possible random samples of the same size are considered that have been drawn from the same…

Q: Online selling An online seller of yema cake, which is very popular in Tayabas Quezon surveyed…

A: Fifty-two percent of the customers were satisfied Services that were offered with margin of error…

Q: Formulate the hypothesis 1. Ho: 2. HA: 3. Given: 5. Solve for t: n =

A: NOTE-AS PER POLICY I HAVE CALCULATED FIRST 3 PARTS ONLY     Here Claim is that  mean number of…

Q: By law, all new cars must have airbags on both the driver's side and the passenger's side. There is…

A: Given that  n=55 , X=35

Q: Complete the following worksheet and then use it to calculate the coefficient of determination. (ŷ;…

A: The formula to compute the coefficient of determination is, r2=∑(y⏞i-y)2∑(yi-y¯)2

Q: An airplane is built to be able to fly on one engine. If the plane has two engines operate…

A: Given Hello. Since your question has multiple, we will solve first question for you. If you want…

Q: A company employs 79 people. Choose a simple random sample of five to survey. a. In the table of…

A: a) From a table of random numbers we get 61424 20419 86546 b) In groups of two it will be,  61 42 42…

Q: 3. How does the level of confidence affect the sample size? (Consider that other factors are…

A: The appropriate statement about the confidence interval (CI) is to be obtained from the given…

Q: c) The probability density function of random variable X is given as: if 0< x < 2 f(x) = if 2 < x <…

A: Given that

Q: Assume the random variable x is normally distributed with mean µ = 88 and standard deviation o = 4.…

A:

Q: Find the power of the test for each combination of effect size and total sample size below…

A: Please find the solution below. Thank you

Q: The mean NAEP mathematics score (on a scale of 0 to 500) for the 1014 students in the 2014 sample…

A:

Q: An SRS of nine adults went on a low-fat diet for 10 weeks to lower cholesterol. Here are the data…

A: Hypothesis testing : Hypothesis testing is a type of statistical inference that uses sample data to…

Q: 17. Approximately 10% of all people are left-handed. Suppose that you randomly ask 8 people "are you…

A: Given that  n=8 , p=10%=0.1 , q=1-p=1-0.1=0.9 X~Binomial(n=8,p=0.1) X= Number of left handed…

Q: Using the measures of dispersion, describe the population of the world's top ten (10) crowded cities…

A: Given that -

Q: A box contains 5000 tickets. There are 500 cards with value of 1 and 4500 cards with value of 0. We…

A: From the given information, A box contains 5000 tickets. There are 500 cards with value of 1 and…

Q: kdenly remember that you were a smart cookie and got vaccinated against several months ago! That…

A: *Answer:

Q: A random sample of 25 of the 400 members of the Bigtime Theater Company is surveyed about how many…

A: Given: 3 5 5 3 4 4 1 3 6 10 1 3 4 5 1 2 4 2 3 2 5 5…

Q: d. What is the critical t value (t table)? e. What is the obtained t value? f. What can you…

A:

Q: From the following data relating to average prices of a commodity compute the index numbers with…

A:

Q: a) Suppose a balanced six-sided die is rolled. i. What is the probability of getting the first…

A:

Q: F.44 Each rear tire on an experimental airplane is upposed to be filled to a pressure of 40 pound…

A:

Q: An avid Mobile Legends player claims that he wins more when using SUPPORT heroes compared with other…

A: Hi, Thank you for your question. As per our policy, we'll be able to answer 3 subparts only. Given…