A toy company sells trading cards with animal prints. The company claims that 25% of the cards are reptiles, 60% mammals, and 15% are birds.[br]Suppose a random sample of 100 cards has 20 reptiles, 55 mammals, and 25 birds. [br][br]Is this consistent with the company claim? Use a 0.05 level of significance.

[table][tr][td][size=100]1.[br][/size][/td][td][size=100]Open the tab [i]Statistics[/i].[br][/size][/td][/tr][tr][td][size=100]2.[br][/size][/td][td][size=100]Choose the [i]Goodness of Fit Test[/i] as your preferred test from the drop-down list.[br][/size][/td][/tr][tr][td][size=100]3.[br][/size][/td][td][size=100]Select a number of 3 rows, because there are 3 different categories, the mammals, the reptiles and the birds. [br][/size][/td][/tr][tr][td][size=100]4. [/size][/td][td]In the column [i]Observed Count[/i] type in the observed numbers of cards, 20 reptiles, 55 mammals and 25 birds.  [br][/td][/tr][tr][td][size=100]5.[/size][/td][td]In the column [i]Expected Count[/i] type in the claimed numbers of cards, 25 reptiles, 60 mammals and 15 birds.[/td][/tr][tr][td][size=100]6.[/size][/td][td]Check the [i]Result[/i] section to interpret the relevant parameter values for your statistical test.[br][/td][/tr][tr][td][br][/td][td][b]Note:[/b] [i]GeoGebra [/i]automatically calculates the corresponding probability based on a normal distribution ([i]P[/i]), the degrees of freedom (df) and the chi-square test statistic (X[sup]2[/sup]).[br][/td][/tr][/table]