ample of college students was asked how much they spent monthly on pizza. Approximate the standard deviation for the cost. Number of students Monthly pizza cost ($) 10.00-19.99 5 20.00-29.99 15 30.00-39.99 23 40.00-49.99 15 50.00-59.99 10 e sample standard deviation for the cost is S (Round to the nearest cent as needed.)

Q: Can I get the ans.

A: This is a t-distribution since the population standard deviation is not known. a. The sample mean…

Q: What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in…

A: Class Frequency 1 - 10 34 11 - 20 23 21 - 30 18 31 - over 13 Solution: Class(1)…

Q: Assume the number of apps is normally distributed with mean  89 and standard deviation 30 . Part: 0…

A: X~N(μ=89,σ=30)

Q: Calculate the mean and standard deviation from the sample data below. 23-41 1 42-60 5. 61 79 80-98…

A: Given data is: class frequency(f) midpoint(x) 23-41 1 32 42-60 5 51 61-79 7 70 80-98 10…

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Q: Check my work You want to estimate the mean family income in a rural area of central Indiana. The…

A: We have given thatStandard deviation(σ) = 500Margin of error (E) = 100Significance level (α) = 1 -…

Q: Use the range rule of thumb to estimate the standard deviation to the nearest tenth.   ​15, 42,​ 53,…

A: The maximum value is 53 and the minimum value is 7.

Q: 50 61 66 60 63 67 73 82 89 92 Five number summary J0. Five number summary 0 . 61. b65. 82.92 Mean…

A: We have given that the five  number summary 50, 61, 66.5, 82, 92. Mean = 70.3,         Range = 42…

Q: The quantitative data was gathered by taking a random sample. Calculate the standard deviation.…

A: Given that the quantitative data was gathered by taking a random sample:x61542527To evaluate the…

Q: The quantitative data was gathered by taking a random sample. Calculate the standard deviation.…

A: Consider the random samplex125272925Sample size, It is required to compute the standard deviation(s…

Q: Recently, a random sample of 25–34 year olds was asked, "How much do you currently have in savings,…

A: From the different savings class we need to find first the class mid point(xi) . And the frequency…

Q: A sample of college students was asked how much they spent monthly on coffee. Approximate the…

A: We have given that,  Monthly coffee cost($) number of students (f)  10.00-19.99…

Q: what percent of Americans eat between 9lbs and 19lbs of ice cream each year ?

A: Given Data Population Mean,μ = 16.5 Population Standard Deviation,σ = 2.5

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A: Sample standard deviation indicates how far are the data points from the mean value in the sample…

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A: Given that, Adult male lion weights are normally distributed, with a mean of 420 pounds and a…

Q: y Plan Score: 225/300 Ques Mr. Felix is a second-grade teacher who is grading spelling tests. The…

A:

Q: Reading Improvement Program To help students improve the is to be administered to the bottom 6% of…

A: Given Information: Mean μ=124.4 Standard deviation σ=23 Reading program is to be administered to the…

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A: It is given that the mean and standard deviation are 50 and 5, respectively.

Q: 11. Sixteen men and sixteen women purchased magazine subscriptions. The distribution of prices had…

A: Given that  Sixteen men and sixteen women purchased magazine subscriptions. The distribution of…

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A: Suppose the random variable x defines the time to finish the exam.

Q: When the null hypothesis is true, the F test statistic is close to When the null hypothesis is…

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Q: The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. A…

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Q: The following table shows the number of people that are either 18, 19, 20 or 21 years old, from a…

A: a)The frequency table shows the age distribution of people.

Q: Reading Improvement Program To help students improve their reading, a school district decides to…

A: given data, normal distribution , μ=129.3σ=15     p(X<Z)=0.15cutoff score =?

Q: Recently, a random sample of 25-34 year olds was asked, "How much do you currently have in savings,…

A: SavingsFrequency$0 - $199330$200 - $39994$400 - $59947$600 - $79919$800 - $99913$1000 - $11997$1200…

Q: he following data represent the number of people aged 25 to 64 years covered by health insurance…

A: The data shows the number of people aged 25 to 64 years covered by health insurance in 2018.

Q: What was the age distribution of prehistoric Native Americans? Extensive anthropological studies in…

A: Given, Class f 1-10 35 11-20 21 21-30 16 31 and over 8

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A:

Q: According to a website, the mean number of apps on a smartphone in the United States is  90. Assume…

A: From the provided information,