An article reported the following data on oxidation-induction time (min) for various commercial oils: 88 102 130 160 180 195 133 145 213 105 145 152 153 136 87 99 92 119 129 LUSE SALT (a) Calculate the sample variance and standard deviation. (Round your answers to four decimal places.) s2= 1292.13. s= 35.84 x min² ✓ min (b) If the observations were reexpressed in hours, what would be the resulting values of the sample variance and sample standard deviation? Answer without actually performing the reexpression. (Round your answer to four decimal places.) s²= hr²

Q: someone searching for a room? 275 122 182 157 266 102 205 120 The range of the sample data is (Round…

A: Solution

Q: In a particular population, it was of interest whether donut shops are, on average, more profitable…

A: (1.1) The value of the average mean difference between two shop sales is obtained below as follows:…

Q: Question 5: This data is from a sample. Calculate the mean and standard deviation. X 12.9 11.9 13.1…

A: Given data is x=12.9,11.9,13.1,19,17,38.4,18.2,36.3sample size(n)=8

Q: A pharmaceutical company wants to know whether an experimental drug has a stabilising effect on…

A: The formula of sample mean is,The formula of variance is,The formula of standard deviation is,

Q: a. What is the probability that she is a woman and likes accounting courses? b. What is the…

A:

Q: The following data are the final exam scores of 13 students in a very large calculus class. 96 75 86…

A: According to the given information in this question We need to find range variance and standard…

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A: Solution

Q: Historically, heights of men have a mean of 171 cm and a standard deviation of 7.3 cm. Use the three…

A: Given that Mean=M=171, Standard deviations=Sd=7.3

Q: The maximum speeds of a sample of five cars under inspection are noted as: calibrated the speeds of…

A: The maximum speed of sample of 5 cars are noted. Let X be the speed of car. Therefore, X: 79, 85,…

Q: Question 1 The table below shows the lifetime (in hours) of eighty randomly selected orchid blooms.…

A: A) total frequency = 6+12+25+t+14+5 80 = 62+t  t=80-62 =18 t value = 18  By using online calculator…

Q: For the following data, perform histogram analysis for variables X1 ,X2, X3 and X4. Calculate mean,…

A: The mean,  variance and standard deviation can be obtained as given below: Using EXCEL software:

Q: QUESTION 14 Chisha measures her heart rate at rest to be 69.5 beats per minute (bpm). Chisha wonders…

A: Chisha'a measured heart rate at rest bpmHeart rates have a normal distribution in the general…

Q: Listed below are measured amounts of caffeine (mg per 12oz of drink) obtained in one can from each…

A: Step 1:1. RangeThe range is the difference between the maximum and minimum values in the…

Q: For each of the following three data sets, calculate the variance and standard deviation of the…

A: Given Let  female heights (X) test scores (Y) college credit (Z) 50.0 282 96 51.5 297 103…

Q: A nutritionist gets the amounts of sugar (grams) from 10 different cereals, including Cheerios, Corn…

A:

Q: The Mental Development Index (MDI) of the Bayley Scales of Infant Development is a standardized…

A:

Q: 8. Calculate SS, o², and o for the following population of N = 5 scores: 6, 0, 4, 2, 3.

A: N=5Population =6,0,4,2,3

Q: A gym class is taking a fitness test. The gym teacher is recording how many sit-ups the par-…

A: Formula for Z score ,Z score = score - meanstandard deviation Therefore, score = mean + Z score *…

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

A:

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A: Given information Hypothesized mean µ = 519 Sample size (n) = 1800 Mean x̅ = 525 Standard deviation…

Q: Question 2 Find a student's final grade using the table below, which includes the weighted grades…

A: The objective of this question is to calculate the student's final grade using the weighted grades…

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A:

Q: question 6. The highway mileage (mpg) for a sample of 11 different models of a car company can be…

A: The mode is obtained below:   The given data set is 38, 24, 36, 21, 20, 32, 47, 31, 37, 41 and 37.…

Q: For the data below answer the following questions: 5 6 10 12 14 16 17 19 20 21 23 24 25 1. Note that…

A: Given that,Data: 5, 6, 10, 12, 14, 16, 17, 19, 20, 21, 23, 24, 25The mean is The standard deviation…

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A:

Q: In terms of resale value, is remodeling a kitchen worth the cost? The following cost and resale…

A:

Q: Find the range and standard deviation. The table below gives the number of hours spent watching TV…

A: Data set: 7, 2, 5, 10, 10, 5, 3, 9, 7, 4, 8, 4, 3, 2, 2, 4, 6, 6, 1, 9, 5, 1, 5, 2

Q: nd the​ range, variance, and standard deviation for the given sample data. Include appropriate units…

A: X (x-xbar)^2 54 303.7551 35 2.469388 42 29.46939 46 88.89796 0 1337.469 52 238.0408 50…

Q: Assume that grades for a standardized test are distributed normally with a mean of 75 and a standard…

A: By 68-95-99.7 rule we know 68% of the observation falls between one standard deviation from the…

Q: What is the standard deviation? (Round off to two decimal places if necessary)

A: Calculate Standard deviation  from the following…

Q: A math teacher claims that she has developed a review course that increases the scores of students…

A: GivenMean(x)=525standard deviation(s)=110sample size(n)=1800α=0.10

Q: You have a flock of 100 hens. The mean weight of these hens is 7.4g with a standard deviation of…

A: