Find the standard deviation. Round to one more place than the data. 7 19, 20, 8, 17 14 8 20 12 OA 5.1 О В. 1.7 ОС. 54 O D. 5.7

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: Given: Population mean (μ) = 3.3 Sample meanx¯=3.1 Population standard deviation (σ)=1.05 Sample…

Q: The heights of women have a symmetric distribution with a mean of 64 inches and a standard deviation…

A:

Q: The average temperature in Anchorage, Alaska, in January is 21'F with a standard deviation of 10°.…

A: For Anchorage, μ=21σ=10 Consider, the probability that the temperature in a January with a high of…

Q: The proportion of men who smoke cigarettes in the US is 0.23.  A researcher took a sample of 200 men…

A: Sampling Distribution of Proportion: Standard deviation of sampling distribution of sample…

Q: The grades of a statistics midterm are normally distributed with a mean of 70 and a standard…

A: Given, The grades of a statistics midterm are normally distributed with a mean of 70 and a standard…

Q: For 5 year old children, the mean weight is 51.01 pounds with a standard deviation of 3.98 pounds.…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)σ. Here, µ and σ are the mean…

Q: udnury's bowling ball factory in llinois , in pounds, of 9 of the bowling balls produced that day…

A: See the handwritten solution

Q: The blood pressure of a random sample of six patients are as follow: 122, 128, 134, 116, 124, 130 If…

A: Calculate Mean from the following data122,128,134,116,124,130

Q: A dish contains 4 blue and 3 red M&Ms.  You grab 4 M&Ms from the dish.  X is the number of red M&Ms…

A: Given : A dish contains : 4 blue and 3 red M&Ms

Q: Florida has an average temperature of 80 degrees Fahrenheit with a standard deviation of 3.5…

A: # Given : average temperature of Florida is mu1=80 degrees and standard deviations sigma1=3.5…

Q: 10. Age of Senators The average age of Senators in the 108th Congress was 59.5 years. If the…

A: Given that Mean=μ=59.5 Standard deviation=σ=11.5 Find Z-score=(X-μ)/σ

Q: WEIGHTS IN KG OF 10 PREGNANT LADIES, WERE RECORDED IN ANTENATAL CLINIC. THE MEAN WEIGHT WAS 78KG AND…

A: Given Data: Sample Mean=78 n=10 Sample Variance=45

Q: The price of stock A has a higher standard deviation than the price of stock B.  This tells that:…

A: We have given that the statement “The price of stock A has a higher standard deviation than the…

Q: American spend an average of 6.8 hours a night dreaming with a standard deviation of 1.2  hours.…

A:

Q: The average McDonald's restaurant generates $2.3 million in sales each year with a standard…

A: Here, population standard deviation is known, so we can perform a z-test .

Q: The final grades in a statistics course are normally distributed with a mean of 70 and a standard…

A: If a random variable x has a distribution with mean µ and standard deviation σ, then the z-score is…

Q: The researcher changes their mind and decides to use an alpha of .01. What is the new critica value?…

A: Introduction: Denote μ as the true population mean amount of time high school students watch on the…

Q: b. In a class of twenty-five 15-year old girls the average height is M = 62.60 inches. The national…

A: Given: X=M=62.60 inches, μ=63.80 inches, s=2.66 inches The Cohen’s d effect size is calculated as…

Q: The manager of "Frenchies" is concerned that the patrons are not consistently receiving the same…

A: Solution: From the given information, the sample variance is S=1.7, population standard deviation is…

Q: The heights of American adult males are normally distributed with a mean of 177 cm and a standard…

A: We need to get the data by using formula P(mean-standardDeviation< x <  mean+standardDeviation…

Q: 5. If a population has a standard deviation of 16, what is the minimum number of samples that need…

A:

Q: Which of the following values for the population standard deviation would cause a score located…

A: Higher the standard deviation more will be the spread of the data. And the point will be farther…

Q: The life span of a brand of tireis normally di stributed with a mean of 50,000 miles and a standard…

A:

Q: There is an average of 4 accidents in a week on a major highway in the city. What is the standard…

A:

Q: The average McDonald's restaurant generates $2.4 million in sales each year with a standard…

A: Given that: Population mean, μ=2.4 Population standard deviation, σ=0.4 Sample size, n = 33…

Q: The average McDonald's restaurant generates $2 million in sales each year with a standard deviation…

A: Sample  (x) (x-x̄)2 1 2.6 0.1089 2 3.2 0.8649 3 2.2 0.0049 4 2.6 0.1089 5 2.2 0.0049 6…

Q: her wishes to give A’s to the top 8% of the students and F’s to the bottom 8%. The next 10% will be…

A: given: mean(μ)=78 sd(σ)=8

Q: The heights of women have a symmetric distribution with a mean of 63 inches and a standard deviation…

A: It is given that the heights of women follows a normal distribution with a mean 63 inches and a…

Q: Q#7:The average drive to work is 9.6 miles. Assume the standard deviation is 1.8 miles. If a random…

A:

Q: A man recorded the speeds of cars driving past his​ house, where the speed limit was 25 mph. The…

A: The Z-score of a random variable X is defined as follows: Z = (X – µ)/σ. Here, µ and σ are the mean…

Q: SEM for a sample of size 100 and standard deviation of 5.6 is equal to?   a - 14/25   b 23/100   c…

A: Given: Sample size (n) = 100 Standard deviation = 5.6

Q: A nutritionist claims that the mean tuna consumption by a person is 3.3 pounds per year. A sample of…

A: We have given that,  Hypothesized mean = 3.3 , Mean = 3.2 , SD = 1.06 , Sample size = 50 , At…

Q: The heights of children in a second grade section are normally distributed with mean 52 inches and…

A:

Q: A company claims that standard deviation of their products is 20. A sample of 40 is taken and the…

A: Hey there! As per our policy we can answer only 1 ques at a time. Please make a new request for…

Q: If a student scored 77 points on a test where the mean score was 84.5 and the standard deviation was…

A: Solution: Let X be the score of a student. From the given information, X has a mean µ=84.5 and a…

Q: The average McDonald's restaurant generates $3.6 million in sales each year with a standard…

A: In this question given that survey of 27 restaurant Find out a null and alternative hypothesis…

Q: A researcher is conducting a study to determine the mean trough dosage of medication for a…

A:

Q: The price-earnings (PE) ratios of a sample of stocks have a mean value of 12.75 and a standard…

A:

Q: A random sample of 30 students had a final exam average of 86 with a standard deviation of 2 points.…

A: Probability distributions are of two types, discrete and continuous distributions. Normal…

Q: The starting salaries of individuals with an MBA degree are normally distributed with a mean of…

A: Given information- Population mean, µ = $40,000 Population standard deviation, σ = $5,000 We have to…

Q: The average McDonald's restaurant generates $3.3 million in sales each year with a standard…

A:

Q: A high school student spends an average of 6 hours (#=6) on their phone a day with a standard…

A:

Q: The diameter of a spindle in a small motor is supposed to be 4.4 millimeters (mm) with a standard…

A: From the provided information, a) Population mean (µ) = 4.4 Standard deviation (σ) = 0.11 Sample…

Q: A sample of 10 networking sites for a specific month has a mean of 26.1 and a standard deviation of…

A: We have given , Mean = 26.1 and  standard deviation = 4.2, And Sample size = 10 . We have to find…

Q: The heights of American adult males are normally distributed with a mean of 177 cm and a standard…

A:

Q: The weight of football players is normally distribufed with a mean of 200 pounds and a standard…

A:

Q: The average weight of dogs that come to a certain vet's office is 55.6 pounds, with a standard…

A: Solution-: Given: μ=55.6,σ=2.2 We find, P[dog weight more than 60 pounds]=?

Q: 5. In a population with m = 65 and s = 6, Fred is 1 ½ standard deviations above the mean, John's…

A: Hi there! Thanks for posting the question. Since there are multiple questions, we will solve one…

Q: A dish contains 3 blue and 4 red M&Ms.  You grab 3 M&Ms from the dish.  X is the number of red M&Ms…

A: Given data:   The number of blue M&Ms is B=3. The number of red M&Ms is R=4. The number of…

Q: on a nal mathematics assessment test has a mean score of 281. This test result prompts a state…

A: The given claim is that the mean score for the states eighth grades on their exam is more than 275.

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.