I have attached several problems that I need solved.

Questions - u4
The questions are to be answered with full solutions. Be sure to focus on proper mathematical form, including:
1. One equal sign per line,
2. Equal signs in each question lined up vertically with each other,
3. No self-developed short form notations.
4. One step or idea per line,
5. Show complete solution to the given problem.
________________________________________
1. The following distribution gives the numbers of hours of overtime during one month for the employees of a company:
Overtime (h) 0 1 2 3 4 5 6 7 8 9 10
Employees 10 2 4 2 6 4 2 4 6 2 8
Display the data in a histogram.

2. The numbers of service calls a heating company made during the first ten days of November are listed below. Find the mean, median and mode for this set of data.
6, 28, 28, 11, 30, 21, 17, 28, 28, 20

3. The mean of the values 9, 11, 13, 21, 24, 18 and d is 17. Find the value of d. Show the steps you followed to solve for d.

5. When recommending five investments for you to consider, your financial planner mentions that the typical minimum investment is $2 000 since the minimum investment amounts for the five funds being considered are: $500, $2 000, $2 500, $25 000 and $ 2000 respectively. However, when you key these numbers into a calculator, you find the average minimum investments is in fact $6 400. What a accounts for this discrepancy?

... a third variable (or more than one variable) constant. ... So, the first two variables entered were race and sex ... As a student of statistics, what comments might you ...

... None 8 Right Scale Input VAR 2 VAR 1 Introduction to Statistics to Psychology ... 1 1 4 a. Select Two Variables: From one of the 2.9149 1 2 35 variable will be ...

Business Statistics: Correlation Coefficient and Linear Regression. ... X" = "Hours Studying"; this is the INDEPENDENT VARIABLE (discussed in 1.b.) LET "Y ...

Using Excel to calculate descriptive statistics. ... 1. For the first set of paired data (sheet 1): ... to find the means and standard deviations of each variable. ...

... Change of Variables and Statistics. ... This t random variable is called a lognormal random variable, and is ... Given X 1 , X 2 ,..., X n are iid random variables with ...

... Generate and interpret descriptive statistics of central tendency ... the normal curve superimposed for each scale variable. ... 1. Gender (nominal) 2. Age (scale) 3 ...

... Regression Statistics Multiple R 0.89 R Square 0.78 Adjusted R ... 0.05, we conclude that at least one of the ... P-Value for individual variables) Variable P-Value ...

... Descriptive Statistics Dependent Variable: Math_Score Gender Classroom size Mean Std. ... area of interest and identify one dependent variable and two ...

... Find the following descriptive statistics: sample mean, sample standard ... different values of the y variable two variables... coefficient can range between -1 and +1 ...

... what is (are) the critical value(s) for test statistics? 2.33. ... analysis reveals that the first independent variable entered by ... y x1 x2 x3 x4 x5 1 y -0.1661 1 x1 ...