Question

In: Statistics and Probability

A movie theater company wants to see if there is a difference in the average movie...

A movie theater company wants to see if there is a difference in the average movie ticket sales in San Diego and Portland per week. They sample 20 sales from San Diego and 20 sales from Portland over a week. Test the claim using a 5% level of significance. Assume the variances are unequal and that movie sales are normally distributed.

San Diego

Portland

234

211

221

214

202

228

214

222

228

218

244

216

182

222

245

220

215

228

233

224

227

234

217

219

219

226

234

226

255

219

235

228

211

212

248

216

232

217

233

214

Choose the correct decision and summary based on the p-value.

  • A.

    Do not reject H0. There is evidence that the average movie ticket sales in San Diego and Portland per week differ.

  • B.

    Reject H0. There is no evidence that the average movie ticket sales in San Diego and Portland per week differ.

  • C.

    Reject H0. There is evidence that the average movie ticket sales in San Diego and Portland per week differ.

  • D.

    Do not reject H0. There is no evidence that the average movie ticket sales in San Diego and Portland per week differ.

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