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A national poll reported that 58% of those with internet access have made purchases online. To...

  1. A national poll reported that 58% of those with internet access have made purchases online. To investigate whether this percentage applies to its own state, a legislator commissions a study. A random sample of 400 state residents who have internet access is taken. Of those 400 respondents, 215 said that they have made purchases online. Does this sample provide sufficient evidence to conclude that the state differs from the nation with respect to making purchases online?

  1. Give the hypotheses for the above.
  2. Compute the test statistic
  3. At 95% confidence, test to determine whether or not the state differs from the nation with respect to making purchases online?
Math   Statistics-And-Probability   
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