Question
In: Statistics and Probability
A phone company plans on offering their new smartphone in four colours: white, black, silver and...
A phone company plans on offering their new smartphone in four colours: white, black, silver and rose gold. They anticipate that 30% of shoppers will prefer white, 35% will prefer black, 20% will prefer silver and 15% will prefer rose gold. They perform market research by asking a random sample of 350 potential customers which colour they prefer.
| Colour | White | Black | Silver | Rose Gold |
|---|---|---|---|---|
| Frequency | 105 | 128 | 80 | 37 |
Can the company conclude that their expected distribution was accurate using a 5% level of significance?
Chi Square Distribution Table
a. Calculate the test statistic.
χ 2= χ 2=
Round to two decimal places if necessary
b. Determine the critical value(s) for the hypothesis test.
- +
c. Conclude whether to reject the null hypothesis or not based on the test statistic.
Reject
Fail to Reject
h(i,x)=
{10if program i halts on input x,otherwise.{1if program i halts on input x,0otherwise.
Solutions
orchestra answered 2 years agoRelated Solutions
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