502.4 but idk how you would get that answer im just going off of what marielosr said...
Answer:
There no sufficient evidence to support the manufactures claim at the 0.05 level
Step-by-step explanation:
From the question we are told that
The mean is
The sample mean is
The sample size is
The standard deviation is
The test statistics is
The level of significance is
The null hypothesis is
The alternative hypothesis is
Generally the p-value is mathematically represented as
From the z-table
So
=>
From he value given and obtained we see that
Hence we reject the null hypothesis
Hence there no sufficient evidence to support the manufactures claim
Answer:8
Step-by-step explanation:
Answer:
42%
Step-by-step explanation:
Lets assume there were a total of 100 people (it will make calculations much easier).
Given, 30% men and 70% women, so we can say:
30% of 100 = 30 Men
70% of 100 = 70 Women
OF THE WOMEN SURVEYED, 60% of those prefer SUV. So,
60% of 70 (women) prefer SUV,
60/100 * 70 = 0.6 * 70 = 42 Women prefer SUV
We need probability of Woman prefering SUV from TOTAL, so that would make it:
42/100 = 0.42
Converting to percentage:
0.42 * 100 = 42%