Answer:
c) t-test of population mean
Explanation:
The t-test statistic is used in hypothesis testing. Here we would use a one sample t test to test our hypothesis. The one sample t test measures the statistical difference between the hypothesized mean and the sample mean. In a one sample t test or single sample t test, a test variable is measured against a test value.
Example we compare our test variable to the hypothesized mean value $75 above.
The t test is used instead of z score when standard deviation is unknown.
Using the t test, we either accept or reject the null hypothesis given alternative hypothesis.
The ounces of cheese Ellie uses to make tacos is 2
What is a unitary method?
The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.
Calculation :
1 pound = 16 ounces
Total cheese Ellie has = 
pound
Cheese required to make tacos = ×
= 
pounds
Ounces of cheese required to make cheese are × 16 = 2 ounces
learn more about the unitary method here :
brainly.com/question/17110989
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Answer:
(x + y)^5.
Step-by-step explanation:
The (r+1)th term of (x + y)^n = nCr x^n-r y^r
Compare this with 10x^3 y^2 we get
nCr = 10 , n-r = 3 and r = 2 giving n = 3+2 = 5
5C2 = 10.
So the answer is (x + y)^5.
1st card : 3 steps forward
2nd card: 3 steps back
3rd card: 4 steps back
4th card: 5 steps forward
5th card: 10 steps forward
6th card: 7 steps back
Total steps : 3 + 3 + 4 +5 +10 + 7 = 32
Answer: D) 32
