1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
klemol [59]
3 years ago
10

What is the product? Express the answer in lowest terms. two and three-fourths times one-half

Mathematics
1 answer:
neonofarm [45]3 years ago
4 0

Answer:

11/8 OR 1 3/8

Step-by-step explanation:

You might be interested in
Theo deposits $2,000 deposit in a savings account earning compound interest at an annual rate of 5% compounded annually. He make
Arada [10]
The amount in the account after 10 years would be $3257.79
4 0
3 years ago
This is the graph of y=x^2+2x-2 what is the range of this function
Sedaia [141]
The range is [-3, ∞)
3 0
3 years ago
4) Realtor gets 3% commission on sales, sold a $200,000 house, her<br> commission is
sdas [7]

Answer:

6,000

Step-by-step explanation:

200,000 * 0.03 = 6,000

6 0
2 years ago
Read 2 more answers
A system of inequalities is graphed on the coordinate grid. Which symbol could be written in both circles in order to represent
Vlad1618 [11]
Its the third answer
8 0
2 years ago
Read 2 more answers
Some researchers have conjectured that stem-pitting disease in peach-tree seedlings might be controlled with weed and soil treat
stiks02 [169]

Answer:

Part A

b. 14.6 ± 7.38

Part B

b. 3.43

Part C

a. P-value < 0.01

Part D

b. There is sufficient evidence to reject the null hypothesis

Step-by-step explanation:

Part A

The given data are;

The number of seedlings in the field = 20

The number of seedlings selected to receive herbicide A = 10

The number of seedlings selected to receive herbicide B = 10

The height in centimeters of seedlings treated with Herbicide A, \overline x _1 = 94.5 cm

The standard deviation, s₁ = 10 cm

The height in centimeters of seedlings treated with Herbicide B, \overline x _2 = 109.1 cm

The standard deviation, s₂ = 9 cm

The 90% confidence interval for μ₂ - μ₁, is given as follows;

\left (\bar{x}_{2}- \bar{x}_{1}  \right )\pm t_{\alpha /2}\sqrt{\dfrac{s_{1}^{2}}{n_{1}}+\dfrac{s_{2}^{2}}{n_{2}}}

The critical-t at 95% and n₁ + n₂ - 2 degrees of freedom is given as follows;

The degrees of freedom, df = n₁ + n₂ - 2 = 10 + 10 - 2 = 18

α = 100% - 90% = 10%

∴ For two tailed test, we have, α/2 = 10%/2 = 5% = 0.05

t_{(0.025, \, 18)} = 1.734

C.I. = \left (109.1- 94.5 \right )\pm 1.734 \times \sqrt{\dfrac{10^{2}}{10}+\dfrac{9^{2}}{10}}

C.I. ≈ 14.6 ± 7.37714603353

The 90% C.I. ≈ 14.6 ± 7.38

b. 14.6 ± 7.38

Part B

With the hypotheses are given as follows;

H₀; μ₂ - μ₁ = 0

Hₐ; μ₂ - μ₁ ≠ 0

The two sample t-statistic is given as follows;

t=\dfrac{(\bar{x}_{2}-\bar{x}_{1})}{\sqrt{\dfrac{s_{1}^{2} }{n_{1}}+\dfrac{s _{2}^{2}}{n_{2}}}}

t-statistic=\dfrac{(109.1-94.5)}{\sqrt{\dfrac{10^{2} }{10}+\dfrac{9^{2}}{10}}} \approx 3.43173361147

The two sample t-statistic ≈ 3.43

b. 3.43

Part C

From the t-table, the p-value, we have, the p-value < 0.01

a. P-value < 0.01

Part D

Given that a significance level of 0.05 level is used and the p-value of 0.01 is less than the significance level, there is enough statistical evidence to reject the null hypothesis

b. There is sufficient evidence to reject the null hypothesis.

4 0
2 years ago
Other questions:
  • A polygon with five sides and five angle is a
    5·2 answers
  • Write the opposite of each integer.<br> 3. +8
    5·1 answer
  • 4*2 + 3[37 – (2x5)]=<br> Exponents are this *
    8·1 answer
  • 56-45÷5[90÷3{4-(25-31)}]​
    6·1 answer
  • Please help, math expressions
    5·1 answer
  • Kristina received $125 for her birthday. Her parents offered to pay her 3.5% simple interest per year if sh
    8·1 answer
  • Julissa wants to join her local gym. A gym membership is $27 a month with a one–time initiation fee of $117. Which equation repr
    14·1 answer
  • PLEASE HELP ME NEED IT ASAP
    10·2 answers
  • You flip a coin twice. What is the probability it lands heads-up both times?
    8·2 answers
  • 2x + 3 = 5 x = plz answer thank you
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!