2. A sample of 26 elements from a normally distributed population is selected. The sample mean is 10 with a standard deviation of 4. The 95% confidence interval for u is 8.384 to 11.616 9.846 to 10.154 6.000 to 14.000 8.462 to 11.538

Q: The average salary of 64 employee was 5400 and the sample standard deviation was 280. Find the 90%…

A:

Q: or the original sample n= 500 Atlanta commute times has a mean of x= 29.11. The standard error from…

A: Given data, n=500 Mean x=29.11 standard error is =0.917 find 90%, 95%, and 99% confidence intervals…

Q: The average height of students at a random place from an SRS of 12 students gave a standard…

A: The sample size is 12 and sample standard deviation is 2.5.

Q: Calculate a 95% upper confidence bound for the mean of a normally distributed population using the…

A: given data  x¯ = 39316n = 14σ= 3276normal distribution 95% upper confidence bound = ?

Q: The average salary of 36 employee was 4650 and the sample standard deviation was 165. Find the 99%…

A: We associate with the interval estimate is called a confidence interval. This probability indicates…

Q: fitness of 514 adults (aged 25 to 35) were sampled and their heart rates measured immediately after…

A: Given that  Sample size n =514 Sample mean=1427 Population standard deviation =325

Q: We take a sample of 50 people and obtain a sample mean of 147 pounds with a standard deviation of 15…

A: We have given that  Sample size n = 50 Sample mean = 147 Standard deviation = 15 90%confidence…

Q: A random sample of 100 Colorado residents is selected, and it is found that 82% of them have Subaru.…

A:

Q: What is the 95% confidence interval for u 14.06-16.494 14.15-16.345 14.423-16.107 14.516-16.084 What…

A: See the handwritten solution

Q: A sample of 26 observations is taken from a normal distribution with unknown mean, the sample mean…

A: Answer: From the given data, Sample size(n) = 26 mean (x¯) = 12.6 Standard deviation(σ) = 2.5 95%…

Q: A sample of 42 observations is taken from a normal population with a standard deviation of 8. The…

A: Answer: From the given data, Sample size(n) = 42 Mean (X¯) = 45 Standard deviation(σ) = 8 99%…

Q: 21 randomly selected Ontario men gave an average foot size of 10.7 inches with a standard deviation…

A: Mean = 10.7Standard deviation = 1.5Sample size = 21

Q: A report said that the average blood pressure is  130.71  for a sample of  37  white males aged  35…

A:

Q: A random sample of 12 chemists from Washington stats shows an average salary of $39,420 with a…

A: The sample mean one (Washington): x¯1=$39,420, sample mean two (New Mexico): x¯2=$30,215, population…

Q: Noise levels in a hospital were measured at 81 different locations. The average level was found to…

A: It is given that, Sample mean = 61.2 decibels. Sample standard deviation, s is 7.9 decibels. The…

Q: If the sample mean is -5.74188, The sample standard deviation is 5.974742672 And the sample size…

A: Here Given    SAMPLE MEAN= X=-5.74188 SAMPLE SD=s=5.974742672 SAMPLE SIZE=n=15 df=14 -

Q: In a random sample of twelvetwelve ​people, the mean driving distance to work was 24.624.6 miles and…

A: The given values are:Sample size (n) = 12Sample mean (x̄) = 24.6 milesSample standard deviation (s)…

Q: In a random sample of 29 people, the mean commute time to work was 31.5 minutes and the standard…

A: Given: Sample Size(n)=29 Mean(X¯)=31.5 Standard Deviation (S)=7.3

Q: Construct a 90% Confidence Interval for the population mean u

A: Given that the sample size is n = 36 Sample mean = 106 Population SD = 12 At 90% confidence level,…

Q: Suppose a sample of 30 LCC students are given an IQ test. The sample has a standard deviation of…

A: Given the following information- n=30s=12.24s2=149.82

Q: The average sa!lary of 64 employee was 5400 and the sample standard deviation was 260. Find the 95%…

A: Solution

Q: The mean score of a random sample of 22 student applicants who took the collegeentrance examination…

A: Given,sample size(n)=22sample mean(x)=76.9standard deviation(σ)=27.4α=1-0.99=0.01α2=0.005z0.005=2.58

Q: The mean IQ score of a sample of 61 students selected from a high school is 93. Suppose the standard…

A: Construct the 99% confidence interval for the population mean The 99% confidence interval for the…

Q: A random sample of 64 students at a university showed an average age of 25 years and a sample…

A: Given that  Random sample size (n) = 64 Sample average (x¯) = 25 years Sample standard deviation (s)…

Q: A sample of 48 observations is taken from a normal population with a standard deviation of 17. The…

A:

Q: 13 squirrels were found to have an average weight of 790 grams with a sample standard deviation of…

A: Given that  n=13 , Mean=X̄=790 , Standard deviation=S=8.3 95% confidence interval

Q: Suppose scores on exams in Biology are normally distributed with an unknown population mean and a…

A: given data σ = 5.4n = 60 x¯ = 81find 90% ci for μ = ?

Q: A random sample of 25 individuals finds a sample mean value of 18 and sample standard deviation of…

A: Given information- Sample size (n) = 25 Mean x̅ = 18 Standard deviation (s) = 6 Significance…

Q: Find a 99% confidence interval for μ.

A: The sample size is n = 7 Sample mean = 46.14 Sample SD s = 1.19 At 99% confidence level and df = (n…

Q: Forty-two items are randomly selected from a population of 500 items. The sample mean is 40 and the…

A: Given : Population size (N) = 500 Sample size (n) = 42 Sample Mean (μ) = 40 Sample standard…

Q: In a random sample of 28 ​people, the mean commute time to work was 33.3 minutes and the standard…

A: Suppose µ is the population mean commute time to work.

Q: If a 90% confidence interval for the mean is (75.3 to 80.9), we would reject H0:  =70 in favor of…

A: Given, 90% confidence interval (75.3,80.9) i.e. The hypothesis to be tested is given as:

Q: Find the value of ta/2 and n = 25 for the 90% confidence interval for the mean if the population…

A:

Q: Suppose we gather a random sample of 20 data points. Assume the population standard deviation is 11.…

A: Given,   Sample size = 20 Sample mean = 23 Population standard deviation = 11   Since the population…

Q: for a sample of 57 that has a mean of 6200 and a standard deviation of 254, calculate the 95%…

A:

Q: or a sample of 121 that has a mean of 6540 and a standard deviation of 780, calculate the 90%…

A:

Q: Find a 99% confidence interval for the mean of weights of Siamese cats if the population standard…

A: We have given that Sample mean (x̄) = 11.8, population standard deviation (σ) = 2.1 and sample size…

Q: The average salary of 64 employee was 5400 and the sample standard deviation was 260. Find the 90 %…

A:

Q: Use Minitab to simulate 1000 rolls of five dice. Find the number of times that the sum of the Based…

A: Note: Hi there! Thank you for posting the question. As you have posted multiple questions, as per…

Q: In a random sample of twelvetwelve ​people, the mean driving distance to work was 24.624.6 miles and…

A: The given values are:Sample size (n) = 12Sample mean (x̄) = 24.6 milesSample standard deviation (s)…