# Question

Consider the observed frequency distribution for the following set of grouped random variables:

Random Variable, x Frequency, fo

Less than 80 ........ 10

80 to under 100 ....... 14

100 to under 120 ...... 19

120 and more ........ 7

Total ............ 50

Perform a chisquare test using α = 0.05 to determine if the observed frequencies follow the normal probability distribution with μ = 100 and σ = 20.

Random Variable, x Frequency, fo

Less than 80 ........ 10

80 to under 100 ....... 14

100 to under 120 ...... 19

120 and more ........ 7

Total ............ 50

Perform a chisquare test using α = 0.05 to determine if the observed frequencies follow the normal probability distribution with μ = 100 and σ = 20.

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