what is the population parameter?1.) The number of customers in the sample who made a purchase on the site2.) The number of customer sampled3.) The proportion of all customers in the sample who made a purchase on the side4.) The proportion of our customers who made a purchase on the siteWhat condition for using a z-distribution is met? 1.) A simple random sample of more than 30 customers was taken2.) The sample taken was a simple random sample3.) The true population proportion is known

An online retailer would like to know whether the proportion of customers who visit the site and make a purchase is different than 50%. A simple random sample of customers is taken. The results of the sample are shown below. Customer sample What is the population parameter? made a purchase 45 Observations 120 Pick Confidence Level 99% Critical value -2.58 What condition for using a z-distribution is met? test statistic (z) -2.74 p-value 0.006 Pick What is the level of significance? Ex: 0.12 What is the null hypothesis Ho ? Pick What is the alternative hypothesis Ha? Pick Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? Pick evidence exists to support the claim that the number of customers who visit the site and make a purchase is not 50%