Given the sample data.

(a) Find the range.

Range = 15

(b) Verify that Σx = 112 and Σx² = 2,656.

(c) Use the results of part (b) and appropriate computation formulas to compute the sample variance s² and sample standard deviation s. (Round your answers to two decimal places.)

(d) Use the defining formulas to compute the sample variance s² and sample standard deviation s. (Round your answers to two decimal places.)

(e) Suppose the given data comprise the entire population of all x values. Compute the population variance σ² and population standard deviation σ. (Round your answers to two decimal places.)

the variance for a sample data of 39 37 35 27 29 18 17 13 12.8 12.0

find range , variance standard deviation for sample data. given that these are top.10 salaries, do we know anything about the variance of salaries of tv personalities in general?

A sociologist develops a test to measure attitudes about public transportation, and 27 randomly selected subjects are given the test. Their mean score is 76.2 and their standard deviation is 21.4. Construct the 95% confidence interval for the standard deviation, σ, of the scores of all subjects.

A) 17.2 < σ < 27.2

B) 16.9 < σ < 29.3

C) 17.5 < σ < 27.8

D) 16.6 < σ < 28.6

Here is the data set concerning treatment groups A and B.

Before performing a t-test to determine if the two groups are different, researchers must first ascertain if the variance in the two groups is the same using an F test.

Indicate whether the hypothesis below is the null or alternate hypothesis for the F test.

"The variance in group A is equal to the variance in group B" _____________? Null/Alternate  

Calculate the F statistic for this data set and report it in the box below, rounded to two decimal places. ____________?

Use the formula =(1-(f.dist(F, df₁,df₂,true) in Excel to calculate the P value for the F statistic, and report it in the box below. Do not use the rounded value for F when calculating the P value. Use the value in the spreadsheet that has not been rounded. __________?

Based on this p value, would you recommend using a Student's t test or a Welch's t test to determine if the two treatment groups have different means? Enter either Student's or Welch's in the box below. ____________?

Ms. Yao age 27, developed a DVT in her left thigh after surgery to repair a fractured right femur. She is receiving IV heparin and will transition to warfarin starting tomorrow.

1. Describe the pathophysiology of DVT. How does Ms. Yao's diagnosis relate to development of DVT?

2. Identify essential information you need to safety administer the medications prescribed

3. Develop a teaching for Ms. Yao

q. 27

JBL Aircraft manufactures and distributes aircraft parts and supplies. Employees are offered a variety of share-based compensation plans. Under its nonqualified stock option plan, JBL granted options to key officers on January 1, 2018. The options permit holders to acquire 6.5 million of the company's $1 par common shares for $22 within the next six years, but not before January 1, 2021 (the vesting date). The market price of the shares on the date of grant is $26 per share. The fair value of the 6.5 million options, estimated by an appropriate option pricing model, is $6 per option. Because the plan does not qualify as an incentive plan, JBL will receive a tax deduction upon exercise of the options equal to the excess of the market price at exercise over the exercise price. The tax rate is 40%.

Required:
1. Determine the total compensation cost pertaining to the incentive stock option plan.
2. & 3. Record the necessary journal entries on December 31, 2018, 2019, and 2020. Assume all of the options are exercised on August 21, 2022, when the market price is $27 per share.

Determine the total compensation cost pertaining to the incentive stock option plan. (Enter your answer in millions (i.e., 10,000,000 should be entered as 10).)

req.2

journal 1.Record compensation expense on December 31, 2018.

journal 2.Record any tax effect related to compensation expense recorded in 2018.

journal 3.Record compensation expense on December 31, 2019.

journal 4. Record any tax effect related to compensation expense recorded in 2019.

journal 5.Record compensation expense on December 31, 2020.

journal 6.Record any tax effect related to compensation expense recorded in 2020.

journal 7.Record the exercise of the options on August 21, 2022 when the market price is $27 per share.

journal 8.Record any tax effect related to the exercise of the options.

You measure 27 backpacks' weights, and find they have an average weight of 57 grams. Assume the population standard deviation is 5 grams. Based on this, what is the margin of error associated with a 99% confidence interval for the true population mean backpack weight. The sample size is sufficiently large that the normal distribution value can be used in deriving the margin of error.

Halliday, Fundamentals of Physics, 10e

CHAPTER 27, PROBLEM 043

You are given a number of 33 Ω resistors, each capable of dissipating only 2.2 W without being destroyed. What is the minimum number of such resistors that you need to combine in series or in parallel to make a 33 Ω resistance that is capable of dissipating at least 6.8 W?

Naturally occurring ⁴⁰K is listed as responsible for 27 mrem/y of background radiation. Calculate the mass of ⁴⁰K in grams that must be inside the 59 kg body of a woman to produce this dose. Each ⁴⁰K decay emits a 1.32 MeV β, and 55% of the energy is absorbed inside the body.

In a survey, 27 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $45 and standard deviation of $10. Find the margin of error at a 95% confidence level.

Give your answer to two decimal places.