Please help me with some math im stuck

Answer:

Step-by-step explanation:

This is a test of a single population mean since we are dealing with mean.

From the information given,

Null hypothesis is expressed as

H0:μ=1.5

The alternative hypothesis is expressed as

Ha:μ>1.5

This is a right tailed test

The decision rule is to reject the null hypothesis if the significance level is greater than the p value and accept the null hypothesis if the significance level is less than the p value.

p value = 0.052

Significance level, α = 0.05

Since α = 0.05 < p = 0.052, the true statement would be

At the α=0.05 significance level, you have proven that H0 is true. B.

Final answer:

To calculate how much money Jose made from selling his shares, we need to know the number of shares he sold.

Explanation:

To calculate the amount of money Jose made, we need to know the number of shares he sold. Let's say he sold x number of shares. Since he sold all of his shares at $128.34 per share, the total amount of money he made can be calculated by multiplying the price per share by the number of shares: $128.34 * x = total amount made. Without knowing the number of shares, we cannot determine the exact amount Jose made.

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Step-by-step explanation:

s = σ / √n

s = 20 / √100

s = 2

Final answer:

Using the formula for standard error, we calculate the expected error between the sample mean and the population mean in the scenario provided. The answer is 2.

Explanation:

The standard error of the mean (SEM) can be calculated using the formula SEM = sigma/ sqrt(n), where 'sigma' is the standard deviation of the population and 'n' is the sample size. In this case, sigma (σ) is 20 and the sample size (n) is 100. So, SEM = 20/sqrt(100) = 20/10 = 2.

The standard error quantifies the average amount of error between the sample mean and the population mean. Therefore, one can expect, on average, a 2 score difference between the sample mean and the population mean.

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Answer:

X=40, Y=140, Z=40 because total sum is 360

Answer:

x is 40° because it's same side interior angle

y is 140° because it's a corresponding angle with the 140° angle

z is 40° because it's a corresponding angle with x

Using distributive property we can expand the expression as

3n - 5 = -8 x 6 + (-8) x 5n

To apply the distributive property to the equation

3n - 5 = -8(6 + 5n), we need to distribute the -8 to the terms inside the parentheses.

Using the distributive property, we have:

3n - 5 = -8 x 6 + (-8) x 5n

Simplifying further:

3n - 5 = -48 - 40n

Now, we can continue solving the equation using the simplified form as

3n + 40n = -48 + 5

43n = -43

n= -1.

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Answer:

n=-1

Step-by-step explanation:

3n-5=-8(6+5n)

3n-5=-48-40n

add 40n to both sides

43n-5=-48

n=-1