Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct
1 answer:
Answer:
Average of final course grade is 83.
Step-by-step explanation:
Given : Suppose your statistics instructor gave six examinations during the semester. You received the following grades (percent correct):
92, 70, 84, 87, 90, and 75.
To find : Compute their mean, and use this score to determine your final course grade ?
Solution :
Mean is defined as the total data divide by number of data.
Therefore, Average of final course grade is 83.
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Answer:
The sample data confirm the geneticist's prediction that 75% of the offspring from this cross will have red flowers.
Step-by-step explanation:
A Chi-square goodness of fit test can be used to test the claim made by the geneticist.
The hypothesis is defined as:
<em>H₀</em>: There is no difference between the observed and expected value,i.e. <em>p</em>₁ < 0.75.
<em>Hₐ</em>: There is a significant difference between the observed and expected value, i.e. <em>p</em>₁ > 0.75.
The test statistic is:
Consider the tables attached below.
The value of the test statistic is:
The critical value is:
*Use a Chi-square table.
The critical region is:
The test statistic value of 25.8133 lies in the critical region.
The null hypothesis is rejected at 1% level of significance.
<u>Conclusion</u>:
As the null hypothesis is rejected it can be concluded that 75% of the offspring from this cross will have red flowers.
Answer:
A. 16.12 ft B. 9.64 ft
Step-by-step explanation:
For both of these, you need Pythagorean's Theorem because we have right triangles. In part A, we are given 2 legs and are asked to find the length of the hypotenuse:
and
and PR = 16.12 ft
In part B, we are given the length of the hypotenuse and side PQ remains the same:
and
so
QR = 9.64 ft