Question

A health-conscious student of statistics is looking into the nutrition of a sample of cereals. The student collected the calories per serving for a sample of 20 cereals. The data are reproduced below. Use Excel to calculate the sample standard deviation and the sample variance. Data: (List of calorie values for 20 cereals) a) Sample standard deviation = _____ (Calculate using Excel) b) Sample variance = _____ (Calculate using Excel)

Answer 1

To calculate the sample standard deviation and sample variance using Excel, enter the calorie values in a column and use the formulas STDEV.S and VAR.S.

Step-by-step explanation:

To calculate the sample standard deviation and sample variance, you can use Excel. Here are the steps:

1. Enter the calorie values for the 20 cereals in a column in Excel.
2. In an empty cell, use the formula =STDEV.S(range) to calculate the sample standard deviation. Replace 'range' with the range of cells containing the calorie values.
3. In another empty cell, use the formula =VAR.S(range) to calculate the sample variance. Again, replace 'range' with the range of cells containing the calorie values.

Once you enter the formulas, Excel will automatically calculate the sample standard deviation and sample variance.

Answer 2

To calculate the sample standard deviation and sample variance of the collected calorie data for the cereals using Excel, enter the data into a column, use the STDEV.S formula to calculate the standard deviation, and use the VAR.S formula to calculate the variance.

Step-by-step explanation:

To calculate the sample standard deviation and sample variance of the collected calorie data for the cereals, you can use Excel. Here are the steps:

1. Enter the calorie data into a column in Excel.
2. In an empty cell, use the formula =STDEV.S(range) to calculate the sample standard deviation. Replace 'range' with the range of cells containing the calorie data.
3. In another empty cell, use the formula =VAR.S(range) to calculate the sample variance. Replace 'range' with the range of cells containing the calorie data.

By following these steps, you can obtain the sample standard deviation and sample variance of the cereal calorie data using Excel.