For Q1 of 2018, a group of 158 mutual funds had a mean return of 4.6 percent with a standard deviation of 4.5. A histogram shows the returns are approximately Normally distributed. Use the 68-95-99.7 rule (not JMP) to answer the following questions (answer as a percentage, to 1 decimal): (a) What % of mutual funds have a return greater than 4.6?  % (b) What % of mutual funds have a return between -4.4 and 13.6?  % (c) What % of mutual funds have a return between -8.9 and 18.1?  % (d) What % of mutual funds have a return less than 0.1 or greater than 9.1 (i.e., outside the interval)?  %

Q: Find the mean, 80th percentile and standard deviation: 2,-3,7,5,-2,3

A: Solution-: Given data: 2,-3,7,5,-2,3 We want to find, (a) The mean=? (b) The 80th percentile=? (c)…

Q: Suppose the following data show the introductory interest rates on a sample of 5 credit cards: 5.2,…

A: To calculate the mean interest rate of the below sample of interest rates. 5.2, 1.1, 2.6, 4.2, 3.4

Q: Find Mean Deviation : (i) about Mean (ii) about Median, in the following data: 2, 7, 9

A: Given data is2, 7, 9

Q: Rate of Return 0.26 0.26 0.03 0.06 0.06 0.04 -0.04 0.22 0.02 0.46 0.06 0.14 0.19 0.05 -0.05 -0.02…

A: Given data: Rate of Return: 0.26, 0.46, -0.05, 0.06, 0.01, 0.26, 0.06, -0.02, -0.01, 0.11, 0.03,…

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

Q: Find the mean and standard deviation for the following:…

A: a)Mean: The Mean is 1.41

Q: The following data show the interest rates on 4 randomly chosen personal loans (in percents): 5.7,…

A: Given,sample size(n)=4

Q: The future Euroyen is the price of the Japanese yen as traded in the European Futures market. The…

A: Mean: Mean=Sum of the valuesNumber of values…

Q: The average daily points for my fantasy baseball team are {4.1, 5.7, 3.8, 4.7, 4.7, 5.5, 4.1, 2.7,…

A: Solution: Note: Hello! As you have posted more than 3 sub parts, we are answering the first 3…

Q: What is the formula to find weighted mean.

A: Weighted Mean: A mean in which some values are more important than others.

Q: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

Q: If we add a constant (say, d) for all data values, how this will affect the geometric mean? and what…

A:

Q: ould have the right to marry. (The 2014 data were collected before the 2015 US upreme Court decision…

A: There are four types of level of measurement, i.e.,  Ratio scale: data is continuous and have a…

Q: imagine you’re hired by a beef company called “American Beef Makers” as a Data Analyst and you’re…

A: Please note that as per our guidelines if multiple sub-parts are there in a question we can answer…

Q: find the mean, standard deviation, the IQR, and tell how the data is skewed, if it is. using the…

A: If the distribution is divided into two parts and the two sides are a mirror image of each other,…

Q: Laura learned that the average GPA in her school is 3.6 with a standard deviation of 0.3. If her GPA…

A: From the given information,   Mean = 3.6 Standard deviation = 0.3   The objective is to find the…

Q: june, an investor purchased 250 shares of orcales(an information technology company) stock at $23…

A: We have given that data  weight w1=250 , w2=360 and w3=510 Weight average x1=23, x2=23 and x3=29

Q: State whether the mean, median, mode is being used. a. In 2002, there were as many people aged 25…

A: a) Median is a middle number is a sorted ascending or descending order. Here, it is clear that there…

Q: A candy manufacturer has replaced 5.17% of their chocolate bars with a new mystery flavor. Find the…

A: Given: Sample size (n) = 424 p(chocolate bars with a new mystery flavor) = 5.17% = 0.0517

Q: student scored in the 75th percentile on the SAT. What does that mean?

A:

Q: The data set below on the left represents the annual rate of return (in percent) of eight randomly…

A:

Q: A pharmacologist measured the concentration of dopamine in the brains of several rats.The mean…

A: Mean = 1269 Standard deviation = 145

Q: Find Mean Deviation: (i) about Mean (ii) about Median, in the following data: 2, 7, 9

A:

Q: C2. GSS 2014 and GSS 2018 respondents were asked their opinion on whether homosexuals should have…

A: Given information: GSS 2014 and GSS 2018 respondents were asked their opinion on whether…

Q: A market researcher at a major clothing company that has traditionally relied on catalog​ mail-order…

A: Introduction :-  We have to explain in this context what the 7% represents in the given context.

Q: National park services, a bureau of the US government responsible for park management, is interested…

A: For current year: The mean can be obtained as: Thus, the mean is 74.56. Arranging the data set into…

Q: If the mean of a data set is 22 and the SD is 5, what % of the values fall between 12 and 27? Give a…

A: given that  mean of a data set is 22

Q: Ten percent of the world's population is left-handed. A researcher claims that left-handed…

A: Given dataTen percent of the worlds population are left handed.A researcher took a sample of 900…

Q: State whether the mean, median, mode is being used. a. In 2002,there were as many people aged 25 and…

A: A measure of central tendency describes a set of data by identifying the central position in the…

Q: The 30% trimmed mean of the following data (120, 150, 170, 177, 178, 193, 198, 250, :450, 955} is…

A: Solution: 2. The data is 120, 150, 170, 177, 178, 193, 198, 250, 450 and 955. Total number of…

Q: According to the U.S. Census, the average adult woman is the United States is 65 inches tall and the…

A: Given X is normal Distributed with mean µ = 65.0 and standard deviation σ = 3.0 Need to find Z score…

Q: Assume monthly returns of 1%, -2%, 3% and 1%. What is periodic arithmetic mean, geometric mean,…

A: Given Information: Consider the given dataset: 1%, -2%, 3% and 1%

Q: Calculate the 60th percentile of the data shown x 9.4 9.8 15.3 19.2 20.5

A: Answer - Calculate the 60th percentile of the data shown x 9.4 9.8 15.3 19.2 20.5

Q: What is the standard error of the mean?

A: Standard error: Standard error is a measure which explains how accurate are the sample means to…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.