26 randomly selected students were asked the number of movies they watched the previous week. #.   Frequency 0.      5 1.        10 2.         6 3.           3 4.            2 find the sample mean x find the approximate sample standard deviation

Q: (A2) if the standard error of the mean is 10 for N=12, what is the standard error of the mean for…

A: Given (A2): SE=10 for N=12 (A2): SE= 50, for N=25

Q: 2. A student has the following quiz scores: 5, 8, 16, 17, 18, 20. Find the standard deviation for…

A: Given- A student has the following quiz scores: 5, 8, 16, 17, 18, 20. To find- Find the standard…

Q: 4. A sample of heights in feet of active volcanoes in North America, outside of Alaska, is listed…

A: From the provided information, Sample size (n) = 6 Level of significance (α) = 0.05

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Q: b. For a sample of engineers, the mean salary is $95,000 with a standard deviation of S30,000. The…

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Q: Twenty-six randomly selected students were asked the number of movies they watched the previous…

A: Calculate Mean, Sample Standard deviation (S) from the following grouped data X Frequency 0 6…

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A: We have given that,  Sample variance (s^2) = 10 And the data set, 4, 12, 6, 9, 6, 11 We will find…

Q: hen the sample standard deviation

A: Let n=8 we have to find sample standard deviation' sample standard Deviation=∑l=18XI2-n*x27

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Q: The average room rate for a hotel in a city in 2016 was ​$332. Suppose the​ city's Chamber of…

A: Given,sample size(n)=41sample mean(x¯)=346.91standard deviation(σ)=58α=0.01

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A: Given :Population standard deviation = 2.8 daysCompany wants to be 95% confident that the true mean…

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A: Given,410 , 457 , 410 , 239sample size(n)=4

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Q: 26 randomly selected students were asked the number of movies they watch the previous week.  # of…

A: The general formula for the sample standard deviation is, s=∑fixi-x¯2n-1

Q: Find the sample variance and standard deviation. 23, 11, 5, 9, 12 s²= = 45 (Type an exact answer.…

A: Given that  The data are 23,11,5,9,12

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A: data given 290,340,150,300,200,100,400,500,600,89,94 note: According to Bartleby guidelines expert…

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Q: 2. A Lyft driver is interested in the number of rides he gives Fridays. He randomly selects 7…

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Q: 5. Make a questionnaire with one question (using Google form) for a sample size of 50 students to…

A: A sample data shows the number of hour’s students spent for studying per week with sample size 50.

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Q: sample of 40 items resul- tandard deviation is o= 5 . dard error of the mean (O

A: Given Data Population Mean,μ = 25.0 Population Standard Deviation,σ = 5.0

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A: Given For the first question μ=50000σ=3500   For the second question  μ=50σ=6

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A: We have given that,  The data set is,  411, 465, 400, 210

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Q: 1) Here are the weights in pounds of a sample of 10 students in fourth grade class: 61, 64, 66, 74,…

A: A) Mean: Mean(x¯)=Sum of data valuesNumber of data values        =61+64+66+74+77+78+78+83+84+8510…

Q: 5. Statewide, the population as a whole watches 6.2 hours of TV per day. A random sample of 1017…

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Q: What is the standard error?

A: Let , X→N(μ=28000 , σ=7200) , N=20000 , n=64 By using central limit theorem , The sampling…

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Q: For the following sample of n=8 scores find the meand and the standard deviation. 0,2,1,0,6,1,0,2…

A: Given data 0,2,1,0,6,1,0,2 Mean is given by

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Q: Average Senior High School annual cost of tuition fee for all private school last year was P46,300.…

A: A random sample of 45 private schools; n=45 The sample mean was 47800 and sample standard deviation…

Q: An insurance company crashed four cars in succession at 5 miles per hour. The cost of repair for…

A: Given data is $427 , $453 , $402 , $240sample size(n)=4sample mean(x¯)=427+453+402+2404sample…