statistics

Problem 1: data speeds 5 Points Consider an experiment that measures the data speeds of smartphones from several different carriers. The data for Verizon is below for your reference. 38.5 55.6 22.4 14.1 23.1 1a point estimate What is the value of the point estimate of the population mean? 1b two narratives Consider the two narratives given below: b.1 find the probability that 1 randomly selected smartphone has an individual speed greater than 40 mbps? b.2 find the probability that among 12 randomly selected smartphones (assume a normal distribution), the mean speed is greater than 40 mbps? Which of the following questions invokes the central limit theorem and why? 1c unbiased estimator Statistically speaking, how would you dene an unbiased estimator in general? 1d condence interval For the smartphone experiment, compute a 95% condence interval of the population mean and make an interpretation Condence interval here Interpretation here 1e reject or fail to reject Researchers hypothesize that the population mean speed of smart phones is 48 mbps. Will you relect or retain their hypothesis based on your work above? Explain. Circle: reject fail to reject Explain