A TV producer company wants to determine the number of hours that people spend on watching training programs. The company hired a statistician to survey 151 randomly selected homes and determined the number of hours. (refer to the Excel file for data, TV Producer). Estimate with 90% confidence the average hours that people spend on watching training programs.

Number of hours spent on the training programs

1

5

4

2

4

4

4

4

1

4

4

4

5

2

4

3

3

1

4

4

2

2

1

3

1

1

5

5

3

1

5

1

3

2

1

3

3

4

4

4

2

2

3

3

4

5

5

3

4

3

4

4

4

1

2

5

3

4

2

1

2

3

2

3

1

3

1

2

4

5

2

5

2

1

3

5

4

2

2

3

3

3

3

2

1

5

5

4

5

4

3

1

1

3

3

1

1

2

3

5

5

3

4

4

4

1

3

3

1

2

3

1

3

1

5

3

5

2

5

4

2

1

1

4

1

4

1

1

5

2

1

2

4

4

4

1

4

5

2

2

4

2

5

5

1

2

1

3

5

2

1