Finding midpoint for class with greatest frequency

Assignment Help Basic Statistics

Reference no: EM1322864

Q1) In random sample of 46 bolts, mean length was 1.28 inches and standard deviation was 0.07 inch. Use normal distribution or a t- distribution to create a 99% confidence interval for the mean.

Which distribution must be used to create the 99% confidence interval ?

a) Use normal distribution as the lengths are normally distributed and σ is known.

b) Use t-distribution because n≥ 30.

c) Use t- distribution as lengths are normally distributed and σ is known

d) Use normal distribution because n≥ 30.

e) 99% confidence interval is?

Q2) Using given data table, determine class interval for the wage table?

Hourly Wages	# Employees
$4 to $8	20
$8 to $12	40
$12 to $16	15
$16 to $20	5

a) $4

b) $10

c) $14

d) $20

Q3) Using given data table, find out midpoint for class with greatest frequency?

Hourly Wages	# Employees
$4 to $8	20
$8 to $12	40
$12 to $16	15
$16 to $20	5

a) $4

b) $10

c) $14

d) $20

Reference no: EM1322864

Questions Cloud

Levels of ethical leadership : What are the three levels of ethical leadership? How can we differentiate the three levels? What does leading to a common vision or common good mean to you, to your leadership?

Outline the methodology of studying economics also utilize : Outline the methodology of studying economics also utilize examples in your conversion.

Using binomial approximation-find the proportion days : Using Binomial approximation, find the proportion of the days that will be rejected.

What is consumption also saving in each period : Illustrate what is consumption also saving in each period, assuming no borrowing constraints

Finding midpoint for class with greatest frequency : Using given data table, find out midpoint for class with greatest frequency?

Assumption that more is better satisfied for both goods : Elucidate how that the regression R^2 in the regression. The assumption that more is better satisfied for both goods.

Developing program for real estate agent in java language : Write down a java program for the real estate agent. The program must carry out the following tasks: Ask the users for average house price for the each of the past 5 years for the single family residence of 1500 square feet.

Asian economies of japan and china : In the 1990s and the first decade of the 2000s, investors from the Asian economies of Japan and China made significant direct and portfolio investments in the United States.

Probability of kick off-probability distribution : What is the probability that the kickoff will go between 60 and 75 yards if the average kickoff is 50 yards with a variance of 49?

User Account

All Pages