Solution :
a). The test is a left tailed test.
b). The sample proportion is :
= 0.065
Determining the Z statistics using the formula :
= -2.31
∴ Z statistics value is -2.31
c). Using the excel function, the P-value is :
P-value = Normsdist(-2.31)
= 0.0104441
d). The null hypothesis is
The level of significance is 0.01
We fail to reject the null hypothesis as the P value is less than or equal to the significant level.
I think is the second one
B
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:
225
Step-by-step explanation:
5^2 * 3^2
(5 * 5) * (3 * 3)
25 * 9
225
60 inches because each foot is 12 inches and the TV is 24 inches so 3ft equals 36 inches plus 24 inches equals 60 inches total