QUESTION 12 An equity analyst wants to verity whother there is a vaniation in the mean rate of return for 4 types of equity. The analyst selocted a sample of 110 and conducted an ANOVA test that is shown as follows Vanation df MS Botwoon 161 (Treatment) Within (Eror) Total 772 7. The Within (Eror) degree of freedom is equal to?
Q: to answer this que Two hundred students are enrolled in an Economics class. After the first…
A: Given Information: 200 students are enrolled in an Economics class. Sample size n=6 Scores: 67, 73,…
Q: Suppose that the time required to complete a 1040R tax form is normally distributed with a mean of…
A: Solution-: Let, X= The time required to complete a 1040R tax form Given: We find, P[104R tax form…
Q: The following are the P/E ratios (price of stock divided by projected earnings per share) for 20…
A: Given Data : 24, 38, 20, 23, 23, 20, 22, 29, 21, 23, 25, 18, 14, 31, 34, 43, 22, 50, 29, 14
Q: You collected 10 years of daily data. Based on that you find first trading day of each month 's…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: What happens to the means if the F-value in an ANOVA is NOT significant? There will only be one…
A: Solution
Q: In a survey of 1000 people, mean amount of money they spend on buying Starbuck’s coffee per month is…
A: Solution: a. Let X be the amount of money. From the given information, n=1000, x-bar=19.40, Z=1.96…
Q: You are a newsvendor selling San Pedro Times every morning. Before you get to work, you go to the…
A: The objective of this question is to determine the optimal number of newspapers to buy each morning…
Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90…
A:
Q: A supervisor is asked to score two groups of employees on how difficult he thinks their job is to…
A: Given job difficulty 1 job difficulty 2 3 11 9 10 10 17 2 15 13 15 2 4 7 16
Q: The rate of return on ABC, Inc., stock over the last five years was -2.01 percent, 5.69 percent,…
A: The rate of return in ABC Inc., stock are: -2.01%, 5.69%, 13.06%, -0.89%, 4.68%
Q: The following are distances (in miles) traveled to the workplace by 20 employees of a certain…
A: The objective of this question is to find the 25th and 70th percentiles of the distances traveled by…
Q: What is the margin of error for a 99% CI for a mean, when the sample size is 12, the sample average…
A: Given: Sample size, n = 12 Sample mean, x = 52 Sample standard deviation, s = 13 It follows a…
Q: A couple has three children, find the probability that Only the 2nd child is a girl by using…
A: Given: The number of children a couple has is n=3. Assuming the girls and boys are equally likely.…
Q: Calculate the test-statistic, t with the following information. n₁ n1 = 35, ₁ = 2.59, s₁ = 0.96 1 n2…
A: Given: n1=35x1=2.59s1=0.96n2=60x2=2.11s2=0.45 We need to determine the test statistic t. Here we use…
Q: The following are distances (in miles) traveled to the workplace by 17 employees of a certain…
A: Ans: Given data 32, 18, 37, 27, 15, 28, 22, 16, 7, 3, 40, 31, 9, 9, 14, 24, 11 Arranging…
Q: What is the t-value of a one-tailed t-distribution with ∝ =2.5% ??? df=22?
A: Given : level of significance( ∝) =2.5% = 0.025 degree of freedom(d.f) =n-1= 22 We can find t-value…
Q: Q2. You collected 500 weeks of data (2500 days total). Based on that you find Tuesday's mean return…
A: There are total 500 weeks. Therefore, total 500 Tuesdays are calculated.The mean return of Tuesdays…
Q: H0: There is no relationship between phone use and accidents. H1: There is a relationship between…
A:
Q: The following are distances (in miles) traveled to the workplace by 20 employees of a certain…
A: Here's first we will arrange in ascending order all observation then use formula.
Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 110…
A: The sample mean =110The population mean =119The standard deviation =20
Q: test statistic of -0.318
A: Test statistic are used to determine where the null hypothesis rejected or not. If the test…
Q: ANOVA was applied to test the results of 3 drug treatments. Each drug was given to twenty…
A: Standard deviation is the square root of mean square error.
Q: Suppose the returns on an asset are normally distributed. The historical average annual return for…
A: Given that, The random variable X is returns on an asset It is normally distributed.…
Q: What is the area of proportion between the mean and a z-score of -2.88? What is the area of…
A: The area of proportion between the mean and a z-score of –2.88 = P(–2.88 < Z <0) = P(Z<0) –…
Q: You have committed yourself to gaining financial independence by age 60. To do this you calculate…
A: Given information: The given scenario is as follows: It was stated that I have committed to gain…
Q: Suppose that the time required to complete a 1040R tax form is normal distributed with a mean of 90…
A: We have given that, X be the random variable from normal distribution with mean (μ) = 90 and…
Q: The graph of the waiting time (in seconds) at a red light is shown below on the left with its mean…
A: For the given data, Graph most closely resembles the sampling distribution of the sample means,…
Q: What would be the combined monthly credit card bill standard deviation (in dollars)? How do I…
A: here we need to compute the combined monthly credit card bill standard deviation. Here the first…
Q: The amount of time, in minutes, that a person must wait for a bus is uniformly distributed between…
A:
Q: Can you show me a step explanation on how to find the standard deviation for a sample proportion…
A: As per central limit theorem the formula for standard deviation for a sample proportion is,
Q: Imagine that you are an awesome student in PSY362 this quarter (fingers crossed this is not much of…
A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…
Q: The following data represents the number of adverse events that a sample of 9 children between 0-5…
A: Given information- We have given the data of adverse events that a sample of 9 children between 0-5…
Q: The historical reports from two major networks showed that the mean number of commercials aired…
A: (a) Hypotheses: H0: μ1=μ2H1: μ1≠μ2
Q: what is the formula for finding the inter quartile range
A: Quartiles:Three Quartiles,The first quartile separates the lowest 25% of the observations from the…
Q: An investment analyst wants to establish whether there is a change in the mean rate of return for 9…
A:
Step by step
Solved in 2 steps
- We have seen that drinking tea appears to offer a strong boost to the immune system. In a study extending the results,' blood samples were taken on 5 participants before and after one week of drinking about five cups of tea a day (the participants did not drink tea before the study started). The before and after blood samples were exposed to e.coli bacteria, and production of interferon gamma, a molecule that fights bacteria, viruses, and tumors, was measured. Mean production went from 155 pg/mL before tea drinking to 448 pg/mL after tea drinking. The mean difference for the 5 subjects is 293 pg/mL with a standard deviation in the differences of 242. The paper implies that the use of the t-distribution is appropriate. 'Adapted from Kamath, A., et. al., “Antigens in tea-beverage prime human Vy2V82 T cells in vitro and in vivo for memory and non-memory antibacterial cytokine responses," Proceedings of the National Academy of Sciences, May 13, 2003; 100(10): 6009-6014. (a) Which method is…Underlying price currently at 200 and follows a uniform distribution with mean of 200. You observed 80 strike PUT priced at $5.00. What is the implied MAD?a baker makes cookies n= 50, mean = 10, s = 2. what is the lower bound for a 90% confidience interval for the mean number of cookies per bin?
- The actual monthly demand of special pizza in the past 6 months were: 449, 352, 413, 348, 290, 352 If a four-month moving average forecasting model is used to generate forecasts, what is the value of the Mean Absolute Percent Error (in percent)? Use at least 4 decimals.please answer the question below to 4 decimal placesA researcher is interested in the impact of joining a weight loss program in the past 12 months on the individuals weight loss. The analysis was restricted to people aged 16 and older who answered yes to the question "During the past 12 months, have you tried to lose weight?" about 5% of the sample has joined a weight loss program in the past year. 1. The researcher has decided to use propensity score analysis. What is be the appropriate estimator this analysis: Average treatment effect, Average treatment effect on the treated or average treatment effect on the untreated? Provide a justification for your choice
- In a recent year, some professional baseball player complained that umpires were calling more strikes than the rate of 61% called the previous year. At one point in the season, umpire Dan Morrison called strikes in 2231 out of 3581 pitches (based on data from USA Today. Úse a 0.10 significant level to test the claim that Morrison's strike rate is higher than 61%.1. Find the p-value. (Round to three or more decimal places.) 2. At the 0.01 level of significance, can the doctor conclude that the mean recovery time of patients who have the new procedure is less than the mean recovery time of patients who have the standard procedure?Mean, variance, standard deviation, & z-scores: {5, 7, 7, 5, 5} {7, 7, 11, 7, 10} N=5
- Consider the following statement: "Many studies have proven that the hand (or a kiss on the forehead) will be correct 98% if the time when there is no fever, but will be wrong half the time when an individual actually has a fever." Based on this excerpt, determine the sensitivity and specificity of using a "hand on the forehead" method to determine the presence of a fever. Explain.Suppose the returns on an asset are normally distributed. The historical average annual return for the asset was 7.3 percent and the standard deviation was 8.4 percent. a. What is the probability that your return on this asset will be less than -4.5 percent in a given year? Use the NORMDIST function in Excel® to answer this question. (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.) b. What range of returns would you expect to see 95 percent of the time? (Enter your answers for the range from lowest to highest. A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your answers as a percent rounded to 2 decimal places, e.g., 32.16.) c. What range of returns would you expect to see 99 percent of the time? (Enter your answers for the range from lowest to highest. A negative answer should be indicated by a minus sign. Do not round intermediate calculations and enter your…How do you caluculate F statistics and test at the 0.05 level of significance?