Quiz Fifteen : Averages Dermatologists recommend using at least sunscreen with an SPF of at least 30. A statistics instructor wants to see if...

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Quiz Fifteen : AveragesDermatologists recommend using at least sunscreen with an SPF of at least 30. A statisticsinstructor wants to see if students at her school use a higher SPF sunscreen on average.1 . Identify the variable and state whether it is categorical or quantitative.cite golicqui`2 . Describe the parameter of interest in words and assign a symbol to it .If students use a higher SPF sunscreen on qu3 . Write the null and alternative hypotheses for this problem ."Home'f Students, use sunscreen with an SPF of out30 .HAinDF Student's use sunscreen with an SPF ofmore than 30.`To collect data the statistics instructor polls all the students in her class and finds that the 48students use sunscreen with an average SPF of 35 . 29 and a standard deviation of 17. 19 SPF.4 . Assign appropriate symbols to 48 , 35. 29, and 17. 19X = 35- 29 N = Nil9\5 . Does this data come from a random sample from the population that the statisticsinstructor wants to draw conclusions about ? Explain .yesthe Instructor sampled the studentswhich is a random sample.