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Utlice Megastat y Excel para corroborar sus respuestas. Ejercicio 1 La cmara de comercio de una comunidad de Florida anuncia que el costo medio de

Utlice Megastat y Excel para corroborar sus respuestas. Ejercicio 1 La cmara de comercio de una comunidad de Florida anuncia que el costo medio de un terreno residencial no pasa de $95,000 por lote. Suponga que en una muestra de 25 lotes se encuentra que la media muestral es $96,500 por lote y que la desviacin estndar muestral es $3,200. a) Elabore la prueba de hiptesis para probar la validez de los que se dice la cmara de comercio. b) Calcule el valor del estadstico de prueba. c) Cul es el valor-p aproximadamente? d) Con =0.1, se rechaza o no la hiptesis nula? Use el mtodo del valor crtico y el mtodo del valor-p para sustentar su respuesta. Test de cola derecha con desviacin estndar poblacional desconocida Ejercicio 2 El precio de un diamante de un quilate de Diamond Source USA es $18,000. Un joyero del medio oeste quiere evaluar si el precio medio de los diamantes es de $18,000 en Nueva York. Para este estudio se recolecta una muestra de 30 diamantes, donde el precio promedio de esta muestra () es $19,200 y la desviacin estndar muestral(s) es $3000. a) Formule las hiptesis para determinar si el precio en Nueva York difiere de $18,000. b) Encuentre el estadstico de prueba. c) Cul es el valor-p aproximadamente? d) Con =0.05, se rechaza o no la hiptesis nula? Use el mtodo del valor-p para sustentar su respuesta. e) En relacin al prrafo inicial de la pregunta a qu conclusin llega Ud. Test de dos colas con desviacin estndar poblacional desconocida Use Megastat and Excel to corroborate their answers. Exercise 1 The Chamber of Commerce of a community of Florida announced that the cost middle of a residential lot does not exceed $ 95,000 per lot. Suppose that in a sample of 25 lots is that the sample mean is $ 96.500 per lot and that the sample standard deviation is $ 3.200. a) Develop hypothesis testing to test the validity of that said the Chamber of Commerce. b) Calculate the value of the test statistic. c) What is the value-p about? d) With = 0.1, it is not rejected or the null hypothesis? Use the method of value critical and the p-value method to support your answer. Right-tailed test with unknown population standard deviation Excercise 2 The price of a one carat diamond Diamond Source USA is $ 18.000. A Midwestern jeweler wants to evaluate if the average price of diamonds is $ 18,000 in New York. For this study a sample of 30 is collected diamonds, where the average price of this sample () is $ 19.200 and sample standard deviation (s) is $ 3000. a) Formulate the hypotheses to determine whether the price in New York differs $ 18,000. b) Find the test statistic. c) What is the value-p about? d) With = 0.05, it is not rejected or the null hypothesis? Use the p-value method to support your answer. e) In relation to the opening paragraph of the question to what conclusion you get. Two-tailed test with unknown population standard deviation

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