00:01
In this question, the null hypothesis h0 is given by such that mu equal to 144.
00:21
Null hypothesis means that there is no evidence that the population mean time spent per day accessing the internet by a mobile device is different from 144.
00:34
Alternative hypothesis is mu is not equal to 144.
00:43
That means there is evidence that the population mean time spent per day accessing the internet via mobile device is different from 144.
00:55
So this is alternative hypothesis and this is null hypothesis.
01:19
Now the correct answer is a.
01:34
Option a is the correct answer next we will compute the test statistic and p value the t statistics is given by so we use the mini -tap procedure so in mini -tap procedure the step one we select stat basic statistics one sample in step 2, in sample in column, enter the column of minutes.
04:02
In step 3, in perform hypothesis test, enter the test mean 144, 144.
04:49
Step 4, check options, enter confidence level as 95.
05:27
In step 5, choose not equal in alternative.
05:43
In step 6 click okay in all dialog boxes...