Question
A survey of 900 adults from a certain regionasked, What do you buy from your mobiledevice? The results indicated that 53% of the females and
A survey of 900 adults from a certain regionasked, "What do you buy from your mobiledevice?" The results indicated that 53% of the females and 44% of the males answered clothes. The sample sizes of males and females were not provided. Suppose that of 600 females, 318 reported they buy clothing from their mobiledevice, while of 300 males, 132 reported they buy clothing from their mobile device. Complete parts(a) through(d) below.
a. Is there evidence of a difference between males and females in the proportion who said they buy clothing from their mobile device at the 0.01 level ofsignificance?
State the null and alternativehypotheses, where 1 is the population proportion of females who said they buy clothing from their mobile device and 2 is the population proportion of males who said they buy clothing from their mobile device.
Determine the value of the test statistic.
Test Statistic=
Determine the criticalvalue(s) for this test of hypothesis.
The criticalvalue(s) is(are):
State the conclusion.
__________the null hypothesis. There is __________evidence to support the claim that there is a difference between males and females in the proportion who said they buy clothing from their mobile device
b. Find thep-value in(a) and interpret its meaning.
Thep-value in part(a) is
What does thep-value mean?
A. Thep-value is the probability of obtaining a result at least as extreme as the one obtained with this sample given that the null hypothesis is true.
B. Thep-value is the probability of falsely rejecting the null hypothesis.
C. Thep-value is the probability of rejecting the null hypothesis if the test were repeated for different samples.
D. Thep-value is the probability that the null hypothesis is true.
d. What are your answers to(a) through(b) if 147 males said they buy clothing from their mobiledevice?
Is there evidence of a difference between males and females in the proportion who said they buy clothing from their mobile device at the 0.01 level ofsignificance? State the null and alternativehypotheses, where 1 is the population proportion of females who said they buy clothing from their mobile device and 2 is the population proportion of males who said they buy clothing from their mobile device.
Determine the value of the test statistic.
Test Statistic=
Determine the criticalvalue(s) for this test of hypothesis.
The criticalvalue(s) is(are):
State the conclusion.
______________ the null hypothesis. There is __________evidence to support the claim that there is a difference between males and females in the proportion who said they buy clothing from their mobile device.
Find thep-value and interpret its meaning.
Thep-value is:
What does thep-value mean?
The probability of obtaining a difference in proportions that gives rise to a test statistic _____________ _________________________ is equal to thep-value if there is no difference between the population proportions of males and females who said they buy clothing from their mobile device.
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