Question

A company surveyed 2400 men where 123 of the men identified themselves as the primary grocery shopper in the household a) Estimate the percentage of all males who identify themselves as the primary grocery shopper Use a 96% confidence interval Check the conditions fint bj Agrocery store owner believed that only 45% of men are the primary grocery shopper for their family, and targets his advertising cardingly. He whes to conduct a hypothesis est to see the fraction is in fact higher than 45 What does your confidence indicate? Explain c) What is the level of significance of this test? a) Check the conditions for constructing a confidence interval Select all necessary conditions that have the appropriate contos below A. Successfullure Condition. This condition is sed because there were more than 10 coses and DB Scallure Condition. This condition is not satisfied because there were fewer than other 10 comes or flores DC. Randomation Condition. This condition is sed because there is nothing to indicate that the sample of a randomly D. 10% Condition: This condition is slied because 2400 men are less than 10% of the population of man DE 10% Condition. This condition is not satisfied because 2400 men are more than 10% of the population of CF. Nearly Normal Condition. This condition is satisfied because there is nothing to indicate that the underlying population is not Normal OG Nearly Normal Condition. This condition is not satisfied because is highly unlikely that the population of men is Normal CH. Randomization Condition. This condition is not satisfied because the samples were drawn from a convenience Sample Construct a 90% confidence interval for the sample proportion The 98% confidence in CD (Round to free decimal places as needed b) What does the confidence interval say about the grocery store owner's hypothesis? Because in the we strong evidence that more than one herves as the primary grocery shape Type Integer or Do not found c) Determine the level of cance of the hypotest in the previous part and justly Select the correct chake wand in the webs to complete your choke Cick to select your answers

Answer 1

Given n. 2400 x= 12a4 sa 1224 slx -0.51 NU n a 400 0-ly 9 1-o.si a ) options a, c, D,

the men identify themselves as Primary . groceny shopper. c ) level of Significance (4) rd 20-98 de-0.98 d0-02