A consumer survey indicates that the average household spends µ = $185 on groceries each week. The distribution of spending amount is approximately normal with a standard deviation of σ = $25. Based on this distribution. B. What proportion of the population spends less than $100 per week on groceries?

Q: a. Find the mean of the data summarized in the given frequency distribution. Compare the computed…

A:

Q: Give the range Give the standard deviation

A:

Q: c) The amount of sodium sulfate, in mg, found in the bottled water follows a normal distribution…

A: We have given that Mean(µ) = 13Standard deviations (σ) = 2.5X ~ N (µ, σ )= N (13,2.5)

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A:

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A: From given data, Temperature Frequency (fi) mid point (xi) fi *xi 40-44 2 42 84 45-49 5 47…

Q: Monthly Water Consumption (per cubic meter) Consumption Intervals No. of families 60-74 11 75-89 9.…

A:

Q: For the given values ​​, calculate the standard deviation .

A: Given Data : For calculating the standard deviation, below table will be used    YY Y2Y^2 1 5…

Q: your car is more crowded than you think.  table 5.8 reports results from a 1969 personal…

A: We know that  Mean = sum of all observations /total number of observations

Q: Apply Chebyshev’s rule to solve Exercises. A quantitative data set has mean 25 and standard…

A: a)The mean is 25 and standard deviation is 5.

Q: i. Find the standard deviation. ii. Draw a histogram. Class interval 100-124 125-149 150-174 175-199…

A: Given

Q: 609001 2 51800

A: Given : The data given is as below 60900 51800 47500 42700 34600 31400 30500 29900…

Q: The average monthly sales of 2500 firms are normally distributed with mean $30000 and a standard…

A:

Q: Find the stansard deviation of the data summerized in the given frequency distribution.  The test…

A: The formula for mean and standard deviation is given by,

Q: ne table to the right lists the monthly price n dollars) of a pound of coffee and a allon of…

A: We have given that,  The data set of coffee prices are: Coffee prices (X) : 4.58, 4.16, 5.72, 4.56,…

Q: Construct one table that includes relative frequencies based on the frequency distributions shown…

A: Tar (mg)Non filtered Frequency tTar in filtered Frequency…

Q: Class interval 100-124 125-149 150-174 175-199 200-224 225-249 Frequency, (f) 5 8 16 12 7 2

A: Given data: Class interval Frequency (f) 100-124 5 125-149 8 150-174 16 175-199 12…

Q: A study was conducted to determine if there was a linear relationship between a person's age and…

A: A study was conducted to determine if there was a linear relationship between age of person and peak…

Q: The graph shows the distribution of the number of text What percentage of young adults send between…

A: GivenMean(μ)=28standard deviation(σ)=30

Q: A given data set is normally distributed and has a mean of 25 and a standard deviation of 3. What…

A: From the provided information, Mean (µ) = 25 Standard deviation (σ) = 3

Q: The interest rate for the financing of a used car is on average 9% with a standard deviation of 3%.…

A:

Q: Calculate Mean Deviation (from arithmetic average) for the following values. Also calculate its…

A: Data given  4800,4600,4400,4200,4000

Q: 1. Complete the table below, round relative frequency to 2 decimals Year of the Penny Frequency…

A: To construct a frequency distribution table for the given data: 1) Year of the Penny Frequency…

Q: each month for nine months. Month Sept. Oct. Nov. Dec. Jan. Feb. Mar. Apr. Ma Number of Books 293…

A: It was stated that the number of books the Jefferson Middle school students read each month for nine…

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: Determine whether the following graph can represent a variable with a normal distribution. Explain…

A: The properties of the normal distribution are:The values of mean, median and mode are equal which…

Q: Construct the indicated confidence interval for the population mean μ using the​ t-distribution.…

A:

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A: Temperature Midpoint(x) frequency(f) f*x 40-44 42 3 126 45-49 47 6 282 50-54 52 13 676 55-59…

Q: 2. What percent of values of a normally distributed variable lie between the mean and two standard…

A: Given: Let X be the random variable X~ Normal ( μ, σ2)

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A:

Q: The data represents the daily rainfall (in inches) for one month. Construct a frequency distribution…

A: The objective is to construct a frequency distribution based on the given limits and check whether…

Q: Find the mean of the data summarized in the given frequency distribution. Compare the computed mean…

A:

Q: Calculate the sample standard deviation of the quantitative data shown. Round to two decimal places.…

A: Given data 12,16,28,18,15,25,20

Q: Example 19. Find the standard deviation from the following data: Size of the item : 10 11 12 13 14…

A:

Q: Calculate the range of the data.  16     22     17     18     22     19     21     20      18…

A:

Q: If a researcher wants to find out the average monthly expenses of all university students in…

A: Parameter: A parameter is a function of observations in a population. It is an numerical quantity…

Q: The scores and their percent of the final grade for a statistics student are given.What is the…

A:

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.