Mathematics, 14.07.2020 22:01 lily24113
How common are financial cost or contractual constrains associated with smartphone ownership? A survey of smartphone owners found that 48% of the 18 – to 29 –years–olds, 38% of the 30- to 49-years-olds, 25% of the 50- to 64-years-olds, and 19% of those 65 or older have reached the maximum amount of data they are allowed to use as part of their plan, at least on occasion. Suppose the survey was based on 200 smartphone owners in each of the four age groups: 18 to 29, 30 to 49, 50 to 64, and 65 +. a) At the 0.05 level of significance, is there evidence of a difference among the age groups in the proportion of smartphone owners who have reached the maximum amount of data they are allowed to use as part of their plan, at least on occasion?
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Adeli owner keeps track of the to-go orders each day. the results from last saturday are shown in the given two-way frequency table. saturday's to-go deli orders in person by phone online total pick up 38 25 31 94 delivery 35 28 34 97 total 73 53 65 191 what percent of the to-go orders were delivery orders placed by phone? a. 14.66% b. 38.41% c. 28.87% d. 52.83%
Answers: 2
How common are financial cost or contractual constrains associated with smartphone ownership? A surv...
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