The average level of dissolved oxygen in a stream or river is an important indicator of the water's ability to support aquatic life. A researcher measures the D0 level at 43 randomly chosen locations along a stream. Below are the results in mg/l: m-m \"mm mm mm \"Ill-- The average level of dissolved oxygen less than 5.2 mg/ l puts aquatic life at risk. At 5% significance level can we conclude that an average level of dissolved oxygen different from 5.2 mg/l? (Note: The average and the standard deviation of the data are respectively 5.01 mg/ l and 1.08 mg/l.) Procedure: Select an answer Assumptions: (select everything that applies) f] Normal population [3 Simple random sample [3 The number of positive and negative responses are both greater than 10 f] Sample size is greater than 30 {j Population standard deviation is unknown [3 Population standard deviation is known A food distribution company claims that a fast food restaurant chain receives, on average, 27 pounds of meat on a daily basis. The district manager of the restaurant chain decides to randomly sample 35 shipments from the company and finds a mean weight of 25 pounds with a standard deviation of 4.1 pounds. Test at a 4% level of significance to determine whether or not the food distribution company sends less than they claim. a. Check all of the requirements that are satisfied. H random H the 2 distribution is normal since n 2 30 H the a distribution is normal since the 2 distribution is normal che 13 distribution is normal since up 2 10 and nq 2 10 b. Identify the null and alternative hypotheses. c. What type of hypothesis test should you conduct (left, right, or two-tailed)? left-tailed - right-tailed - two-tailed d. Identify the appropriate significance level. Make sure to enter your answer as a decimal. e. Which calculator function should you use? Select an answer f. Find the test statistic. Write the result below, and be sure to round your final answer to two decimal places. :1 g. Find the p-value. Enter your answer as a decimal (not a percentage) and round to 4 decimal places. :1 h. Should you reject or not reject the null hypothesis? - reject the null hypothesis since p-value gt a - do not reject the null hypothesis since p-value > a - reject the null hypothesis since the test statistic is inside the critical region - do not reject the null hypothesis since the test statistic is outside the critical region i. Select the statement below that best represents the interpretation. - There is sufficient evidence to support the claim that the food distribution company sends less than 27 pounds of meat daily. - There is not sufficient evidence to support the claim that the food distribution company sends less than 27 pounds of meat daily. - The sample data support the claim that the food distribution does not send 2? pounds of meat daily. - We accept the food distribution compaan claim