D = 5x + 10xf solve literal equation for x
1 answer:
You might be interested in
Answer:
a) Null and alternative hypothesis
b) Test statistic t=-1.565
P-value = 0.0612
NOTE: the sample size is n=65.
c) Do not reject H0. We cannot conclude that the price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.
d) Null and alternative hypothesis
Test statistic t=-1.565
Critical value tc=-1.669
t>tc --> Do not reject H0
Do not reject H0. We cannot conclude that the price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.
Step-by-step explanation:
This is a hypothesis test for the population mean.
The claim is that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.
Then, the null and alternative hypothesis are:
The significance level is 0.05.
The sample has a size n=65.
The sample mean is M=30.15.
As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=12.
The estimated standard error of the mean is computed using the formula:
Then, we can calculate the t-statistic as:
The degrees of freedom for this sample size are:
This test is a left-tailed test, with 64 degrees of freedom and t=-1.565, so the P-value for this test is calculated as (using a t-table):
As the P-value (0.0612) is bigger than the significance level (0.05), the effect is not significant.
The null hypothesis failed to be rejected.
At a significance level of 0.05, there is not enough evidence to support the claim that the mean price in Providence for a bottle of red wine that scores 4.0 or higher on the Vivino Rating System is less than the population mean of $32.48.
<u>Critical value approach</u>
<u></u>
At a significance level of 0.05, for a left-tailed test, with 64 degrees of freedom, the critical value is t=-1.669.
As the test statistic is greater than the critical value, it falls in the acceptance region.
The null hypothesis failed to be rejected.
Answer with explanation:
Length of an object
cm
Other unit of measurement are Meter and Kilometer.
→1 Meter = 100 cm
→1 Kilometer= 1,000 meter=100,000 cm
→→21,000 cm = 210 meter = 0.21 Km
Option B:→ length of a city park, is most suitable measurement ,among all other measurement ,that Brad has done.
Second option Might be: Option A→ Length of a city block , may be That Brad has measured.
All other options are Inappropriate, as they require smaller scale or may be larger Scale ,that brad has used to measure
1.≡ Height of a person →→→240 cm (Maximum of 8 feet)
2. ≡Distance across a city →→→1 Km or 2 Km or 3 Km...
3. ≡Height of an apple tree→→→1,000 cm (Maximum)
4. ≡Width of a screen in a theater→→→2,100 cm (Maximum)
5 ≡depth of water in a swimming pool→→→225 cm
None of the five things described above appears, that brad has measured.
Answer:
The graph in the attached figure
Step-by-step explanation:
Let
f -----> the number of pounds of fertilizer
s ----> the number of pounds of seeds
we know that
The inequality that represent the situation is
using a graphing tool
see the attached figure
The solution is the triangular shaded area
