6. The mean grade of 10 students is 86. Accidentally, after computing the mean, the teacher erased the grade of 10th student. What is the grade of this student if the grades of other 9 students are as follows: 78, 85,87,96,75,90,86,92,90. What is the median? bne naiben
Q: A probability experiment consists of rolling a fair 8-sided die. Find the probability of the event…
A:
Q: weight gain -O 2 Summary Statistics Mean Std Dev Std Err Mean N 0.85 2.0271765 0.6410495 10
A: Mean=0.85Standard deviation =2.0271765standard error mean=0.6410495N=10We have to find the variance
Q: . A university has 25,000 students, of whom 17,000 are undergraduates. The housing office takes a…
A: Total University students (N)=2500017000 are undergraduates Sample size (n)=500Number of…
Q: Claim: A minority of adults would erase all of their personal information online if they could. A…
A: Sample size=n=451p^=35%=0.35
Q: Determine the absolute error deviation and percentage error in the calculation of R where R = In ()…
A: In this problem, a mathematical expression has been given for computing R using measured values of…
Q: 2. How many observations are there in a complete data set having 30 elements and 3 variables? A. 90…
A: Number of variable=k=3Number of elements in each variable=n=30
Q: You may need to use the appropriate appendix table or technology to answer this question. The…
A:
Q: (a) Suppose that each of the first two components have lifetimes that are exponentially distributed…
A: (a)Given,each of the first two components have lifetimes that are exponentially distributed with…
Q: One study claimed that 86 % of college students identify themselves as procrastinators. A professor…
A: Suppose p is the true population proportion of college students, who are procrastinators.
Q: 3. Which of the following best describes a preference order? O a listing of all of the candidates…
A: A preference order includes the ranking of candidates in an order of preference.
Q: You may need to use the appropriate appendix table or technology to answer this question. A group…
A: Mean()=23858standard deviation()=5500
Q: A3 For observations 1, 2,...,n with sample average , we can use - x)² ² = 1/(x²- -Σα- n n i=1 as an…
A: The observations x1, x2, …., xn has sample average of x̄.
Q: The Department of Fish and Wildlife looked at the ages of individuals between 65 and 81 that…
A: From the given information we want to find best measure of central tendancy
Q: If investors want portfolios with small risk (variance), should they look for investments that have…
A:
Q: A city government did a survey of working women, to see how they felt about juggling jobs and family…
A: Total number of respondents is 2800.Out of which 1678 respondents checked the item "stress is a…
Q: Traditionally, the psychology department had offered the Psychological Statistics course in the…
A: The hypothesized mean score of students, (i.e., the true score of students in F2F instruction…
Q: Question 16: What z scores fall into the upper .15 of the distribution? Question 18: What z scores…
A: To find the z score corresponding to the upper 0.15 of the distribution, we need to subtract 0.15…
Q: An ice cream company enlisted 20 people to participate in a survey. When selecting either vanilla or…
A: vanillachocolatetotalchild369adult7411total101020select one participant at random. P(adult or…
Q: c. An (BUC) A B S
A: We have to shade the given Venn digrams
Q: Find the mean, median, and mode of the data, if possible. If any of these measures cannot be found…
A: From the provided information,The data values are as follow:65, 53, 38, 45, 65, 24, 119, 15, 119, 85
Q: Heights (cm) and weights (kg) are measured for 100 randomly selected adult males, and range from…
A: According to the given information in this questionWe need to find the best predicted value
Q: Students in an experimental psychology class did research on depression as a sign of stress. A test…
A: 44,28,15,42,41,14,47,16,36,57,28,57,55,32,23,32,32,23,13,58,45,31,56,48,27,52,14,23,38,16sample…
Q: Researchers conducted a study to determine whether magnets are effective in treating back pain. The…
A: Data for treatment:Sample mean, Sample standard deviation, Sample size, Data for sham:Sample mean,…
Q: Which single measure of central tendency-mean, median, or mode- would you say best describes the…
A: 7.116.927.037.056.965.215.217.076.9883.2
Q: For males in a certain town, the systolic blood pressure is normally distributed. with a mean of 120…
A: The mean is 120 and the standard deviation is 7. The sample size is 228.
Q: FREQUENCIES AND GRAPHICS Construct frequency (and percentage) tables for each set of information and…
A: The bar charts are used to plot the categorical variables. If more than two variables have more…
Q: Twenty different statistics students are randomly selected. For each of them, their body temperature…
A: For part a) Answer: Option C) is correctFor part b) Answer: Option C) The value of r is estimated to…
Q: der a sample entile Value 7, 25, 20, 15, 30, 34, 28, and 25 ompute the 19th, 24th, 65th,
A:
Q: Following the values above could you please: 5. Test a hypothesis that the mathematical…
A: Given that E(X) or mx = 78, SD of sx = 9.0830 and sample size n = 5To test H0: = 77 vs H1: ≠ 77…
Q: A paper reported that for a group of 76 college students, the average number of responses changed…
A: here z score for 0 =(X-mean)/standard deviation =(0-0.9)/1 =-0.9please try 0.9 in place of (-0.9)…
Q: If the level of employee satisfaction drops below 0.60 overall, then there is a belief that there…
A: The given problem involves analyzing employee satisfaction levels in the Human Resources department.…
Q: A Human Resources specialist found that 705 of 1,600 employees at a particular company were pleased…
A: 1. Determine the number of employees in the lowest 30%: - Calculate 30% of 400: 0.3 * 400 = 120…
Q: Listed are 30 ages for Academy Award-winning best actors in order from smallest to largest. 10 22 33…
A: The data values indicate 30 ages for Academy award winning best actors.…
Q: c. Would a 90% confidence interval based on this sample be wider or narrower than the 95% interval?…
A: It is given that Sample proportion, p^ = 82% = 0.82Sample size, n = 800
Q: An engineer wanted to determine how the weight of a car affects gas mileage. The accompanying data…
A: Data for car 1 to 11 is given in tableAnd data for car 12 : Weight (3305) & miles per gallon…
Q: x P(X = x) -2 2 10 0.39 0.69 0.12
A: Determine whether or not the distribution is a discrete probability distribution and select the…
Q: A group of people were asked if life exists elsewhere in the galaxy. 298 responded "Yes", and 359…
A: A group of people were asked if life exists elsewhere in the galaxy. 298 responded "Yes" and 359…
Q: 25.9 32.4 33.1 19.1 17.5 24.9 21.0 45.1 30.8 34.3 27.1 29.1 25.6 31.3 23.2 24.1 23.9 25.9 18.6 Finf…
A: To find the upper and lower limits for a given percentile using Chebyshev's inequality, we need to…
Q: K Super-Mart has stores in four locations in State A. Super-Mart plans to reapportion its 35…
A: Answer Given Seats available =35Total population =544
Q: Find the variance of X given that Z-10, that is Var(XIZ-10)
A: Z = X + Y ~ Poi(2+8) = Poi(10), z=0,1,2,3,4,....By conditional probability theorem of random…
Q: In a study of treatments for very painful "cluster" headaches, 160 patients were treated with oxygen…
A: The question is about hypo. testingGiven :Total no. of patients treated with oxygen ( n1 ) = 160No.…
Q: Using a 5% level of significance, test the hypothesis that more than 3% of their electric vehicles…
A: Here From given informationClaim : An electric automobile manufacturer states that 3% or less of its…
Q: (d) Compute the linear correlation coefficient between MRI count and IQ for females. Compute the…
A: Let, x denotes MRI and y denotes IQ for males and females.Then, the dataset for male and female is…
Q: This graph provides the lower tail probabilities for the standard normal distribution. Change the…
A: The objective is to obtain the value in the standard normal distribution, such that the area to the…
Q: In California, we need more rain to sustain the health of our natural environment, argriculture, and…
A: Inches of rain(x)Frequency(f)192433425463
Q: CNNBC recently reported that the mean annual cost of auto insurance is 980 dollars. Assume the…
A:
Q: 2. The data below show the admission status and gender for a sample of applicants to State U. Total…
A: The given data with marginal total is:AcceptedNot…
Q: Sketch a bell curve for the SAT critical reading data with markings on the horizontal axis for +1…
A:
Q: Please round to the nearest integer (no decimals): A fair coin is tossed 1,000 times. Suppose the…
A: A fair coin is tossed 1,000 times. Suppose the coin lands on heads 529 times.
Q: Consider a political discussion group consisting of 8 Democrats, 8 Republicans, and 3 Independents.…
A: no.of democrats=8no.of republicans=8no.of independents=3Total no.of members=19
Answer all questions
Step by step
Solved in 3 steps with 3 images