Decide whether the normal sampling distribution can be used. If it can be used, test the claim about the population proportion \( p \) at the given level of significance \( \alpha \) using the given sample statistics. Claim: \( p \neq 0.26 ; \alpha=0.10 \); Sample statistics: \( \hat{p}=0.24, n=175 \) A. \( H_{0}: p=0.26 \) \( H_{a}: p \neq 0.26 \) B. \( H_{0}: p \geq 0.26 \) \( H_{3}: p<0.26 \) C. \( H_{0}: p \leq 0.26 \) \( H_{3}: p>0.26 \) D. The test cannot be performed. Determine the critical value(s). Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. The critical value(s) islare (Round to two decimal places as needed. Use a comma to separate answers as needed.) B. The test cannot be performed.

Write down the upper and lower quartiles. Upper Quartile = Lower Quartile = Question 3

1. Estas interesado en detectar diferencias en tiempo promedio de programación de comerciales en horario estelar. Un estudio similar detecto una desviación estándar de 30 minutos. Quisieras calcular una muestra con una confiabilidad del \( 95 \% \) y un error máximo tolerable de 5 minutos en tus estimaciones. ¿Qué tan grande tiene que ser tu muestra?

QS-8 company that makes hair-care products had 7,000 people try a new shampoo. Of the 7,000 people, 14 had a mild allergir eaction. What percent of the people had a mild allergic reaction?

4.2PS-9 Car Survey In a survey of 2,400 people who owned a certain type of car, 960 said they would buy that type of car again. What percent of the people surveyed were satisfied with the car?

1) Observe o gráfico de setores ao lado: a) Calcule o ângulo central correspondente aos setore circulares de Futebol, Vôlei e Basquete. b) Se o ângulo central correspondente a "Outros" é igual a 18 quantos \% dos alunos responderam que preferem Natação? c) Se ao todo há 40 alunos no \( 7^{\circ} \) ano, calcule a quantidade de alunos por esporte: \( \frac{x+40}{00} \)