Suppose that you are examining the difference in ages between brides and grooms. You are interested in conducting a significance test to examine to address the theory that the bride is younger than the groom in more than half of all marriages. A sample of 100 couples were observed, for which 67 had a bride younger than the groom.
whats is the parameter? .
Step 2: The null hypothesis and alternative hypothesis?
Step 5: whats the p-value is:

Answer:

Parameter = 0.5

Null hypothesis : H0 : P0 = 0.5

Alternative hypothesis ; H0 : P0 > 0.5

Pvalue = 0.99966

Step-by-step explanation:

The parameter defines a statistical value or calculation which is derived from the population.

The parameter in this scenario is the population proportion, P0 which is 0.5

The scenario above describes a scenario to test the difference in population.

The null hypothesis, that bride and groom are of the same age ;

H0 : P0 = 0.5

The alternative hypothesis ; the bride is younger Than the groom in more than half of the population.

H1 : p0 > 0.5

To obtain the Pvalue :

Test statistic : (phat - P0) ÷ √(p0(1 -p0) / n)

Phat = x/n

x = 67 ; sample size, n = 100

Phat = x / n = 67/100 = 0.67

P0 = 1 - 0.5 = 0.5

Tstatistic = (0.67-0.50) ÷ √(0.5(0.5) / 100)

Tstatiatic = 0.17 ÷ 0.05

Tstatistic = 3.4

P-value : p(Z < 3.4) = 0.99966 (Z probability calculator).

Find the solution of the system of equations shown on the graph.

Cody is purchasing sports equiptment for $161.37. In Colorado, the sales tax is 2.9%. What is the total cost, including tax, on his purchase? ​

How many odd numbers are in 10 to 50?

7.2x14.3 what is that?

what is the answer to 50.25 times x

Suppose a normal distribution has a mean of 34 and a standard deviation of 2. What is the probability that a data value is between 31 and 37? Round your answer to the nearest tenth of a percent.A.86.6%B.88.6%C.87.6%D.85.6%

help me with it thank you

The Virginia Department of Environmental Quality (VDEQ) uses probabilistic monitoring to regulate the water quality of streams in the Commonwealth of Virginia. Of the 85 Eastern Virginia Sites (group 1), 24 do not meet minimum requirements. Of the 80 units sampled in Western Virginia Sites (group 2), 17 do not meet minimum requirements. Assume the data can be treated as independent simple random samples. To determine whether the proportions of streams that fail to meet minimum requirements in the two areas are equal or not, test the following hypotheses.
a) State the null and alternative hypotheses in order to determine whether the proportions of streams that fail to meet minimum requirements in the two areas are equal or not .
(b) Calculate the value of the test statistic z.
(c) Determine the P-value associated with this observed value of z and draw the conclusion about the hypotheses using alpha=0.05.

Factor completely 21x3 + 35x2 + 9x + 15.

Challenge:
Put these in order (least to greatest)

Rachel received $650 for her birthday. She purchased a surfboard for $477 and some additional accessories without spending more than the money she received.

She wrote the inequality 477 + x < 650.

Is the inequality correct?

This trapezoid-based right pyramid has a volume of 48 m3 what is the area?

What is the angle of elevation of the sun when a 44 ft mast casts a 13ft shadow?

a shopkeeper bought 2 watches for rs 400. he sold them to gain 5% one and loss 5% on other. calculate his final gain or loss percent. if the selling price of both watches is same.​

connie poured 200 milliliters of juice into a glass from a juice carton. She then poured 225 milliliters into a second glass. What is the final change in the volume of the carton?

Taylor has a set of 13 cards, labeled 1 through 13. If she chooses a card at random, what is the probability that the number on it is a prime number?

Yumiko Yoshida wants to pay his $1,058.90 annual premium monthly. What is his monthly payment?

What is the measure of m?

which numbers are between 3 1/3 and 8 7/10

Will give brainlst!!

Have a amazing day :)
Pls help

Bob wants to fix the window on his house, but can’t quite reach it he gets a ladder to access the window, which is 15 feet from the ground, and he places the ladder 8 feet from the house. How long does the ladder have to be if it reaches the window exactly?

I need the answer I don’t know what it is so can anybody help.

I Bought 10 apples three days ago. 3 of them were rotten, I ate 2 and gave 5 away. How many apples do I have left?

I'll give you 30 points if you get this right. CHOOSE WISELY :)

Using the following conversions between the metric and U.S. systems, convert the measurement.
Round your answer to 6 decimal places as needed.
1 meter = 3.28 feet
1 Liter = 0.26 gallons
1 kilogram = 2.20 pounds
12.892 dam = [answer] in miles

HELP ME PLEASEEEEEEEEE

Really stumped on these 2 problems anybody know anything? "Find the circumference of each circle. Round to the nearest tenth. Use 3.14 or 22/7 for π"

WILL GIVE BRANLIEST.
Which of the following statements are true?
Select 4 correct answers

1. All of the coordinate pairs in Quadrant 1 are positive.


2. All of the coordinate pairs in Quadrant 3 are negative.


3 All of the coordinate pairs in Quadrant 2 are positive.


4 Everything to the left of zero on the x axis is negative, everything below zero on the y axis is negative.


5The x axis is positive in quadrants 1 & 3


6 The y axis is negative in Quadrants 3 & Quadrant 4.

In an aquarium 2/5 of the fish or surgeonfish. Of these, 3/4 are yellow tangs. what fraction of all fish in the aquarium or yellow tangs

The Diagram below shows rectangle PLUM find the area of PLUM if entering answer as a decimal, round your final answer to the nearest hundredth. Please Help!

Find the volume of a cone that has radius = 2 1/2 and height = 5.
98.1
26.2.
32.7
65.4