Brian will get 40,000 then Chris will get 70,000
Answer:
C.
Step-by-step explanation:
Hypothesis testing procedure:
Hypothesis:
The null hypothesis will be the variances of sales of two musical stores are equal and the alternative hypothesis will be the variances of sales of two musical stores are not equal
Level of significance: alpha=0.05
Test statistic: F=variance A/variance B=(30)^2/(20)^2=900/400=2.25
P-value: p=0.107
As the alternative hypothesis mentioned that the variances are not equal this leads to two tailed test. so the p-value is calculated using excel function 2*F.DIST.RT(2.25,24,15).
Conclusion:
The p-value seems to exceed the alpha=0.05 and this depicts that the null hypothesis should not be rejected.
D) bc 15% of 1000 is 150 and 1000-150 is 850.
Answer: Option 'a' is correct.
Step-by-step explanation:
Since we have given that
Probability of owned a sedan = 39%
Probability of owned a van = 33%
Probability of owned a sports car = 7%
n = 3
We need to find the probability that all three randomly selected households own a van.
So, Probability of getting all 3 own a van is given by
Hence, Option 'a' is correct.
D. 0.07. the negative exponent which is two indicates the number of zeros in the standard form. and the 7 indicates the first number in the standard form
