Compute the standard error of the proportion

Assignment Help Basic Statistics
Reference no: EM13246995

Bentley Foods, Inc., a large manufacturer of frozen foods, has developed a new line of frozen pizza. Management has agreed to begin producing and marketing the new line if at least 15% of the population would prefer the pizza over other frozen pizzas currently available. To determine preferences, a sample of 1,000 consumers was obtained; 172 indicated that they would prefer the new product over existing brands.

a. State the null and alternative hypothesis.

Ho : p £ .15

Ha : p > .15

b. Compute the standard error of the proportion.

c. Calculate the z-statistic. What is the probability of obtaining this value of the z-statistic if the null hypothesis is true?

d. The research manager for Bentley Foods is comfortable using the .05 significance level. Should the null hypothesis be rejected?

e. At this significance level, what is the critical sample proportion?

Reference no: EM13246995

Questions Cloud

Calculate speed if load torque is reduced to three times : The DC shunt motor is running at full load with a supply voltage of 440 V and a supply current of 70 A. The rotation speed in full load is 1000 rpm, the field resistance is 200 Ohm and the armature resistance is 0.2 Ohm.
Write a matlab function for operation of a half-adder : Write a MATLAB function the performs the operation of a half-adder, call it half_add. The function should have two inputs, a and b, and return two outputs, X and c. Then, write another function, call it full_add, that invokes half_add to perform
Find the period of the orbit : An earth satellite is observed to have a height of pergee of 210 Kilometers and a height of apogee of 1,200 kilometers. Find the period of the orbit
Determine the satellites orbital period : Find the speed of a satellite moving in a circular orbit just above the surface of Mars. Mars has a radius of 3.40 106 m and a mass of 6.42 1023 kg
Compute the standard error of the proportion : Compute the standard error of the proportion and calculate the z-statistic. What is the probability of obtaining this value of the z-statistic if the null hypothesis is true?
Determine the total energy stored in the battery : A 9 V battery is rated at 80 Ah. It can deliver a current of 80 A for one hour, or a current of 40 A for 2 hours, etc. What is the total energy stored in the battery
Explain and identify the characteristic of a solution : identify the following as characteristic of a solution, colloid, or suspension: a)particles of this mixture remain inside a semipermiable membrane, but pass through filters. b)the particles of solute in this mixture are very large and visible.
Determine the net gravitational force : Objects with masses of 210 kg and a 510 kg are separated by 0.300 m. Find the net gravitational force exerted by these objects on a 31.0-kg object placed midway between them
What english word is coded by the hexadecimal sequence : Assume the ASCII code is used for each character with an additional parity bit (in the most significant bit position, at left) Each character in ASCII is using 8 bits. a) What english word is coded by the following Hexadecimal sequence

Reviews

Write a Review

Basic Statistics Questions & Answers

  Factors cause variation in weight of rolls in manufacture

Describe the factors that might cause variation in weight of Tootsie Rolls during manufacture.

  Quantitative methods-power stations in south africa

The following table gives the coal usage and electricity generated by ten randomly selected power stations in South Africa in 1992:

  Area or probability when degree of freedom is given

For a t distribution with 16 degrees of freedom, find the area, or probability, in each region.

  Oshkosh school system

Flu cases this past season in the Oshkosh school system were about 15 per week. For the entire state, the weekly average is 16 and the standard deviation, 2.35.

  Explain law of average for a sample of size

People in a large population average 60 inches tall. You will take a random sample and will be given a dollar for each person in your sample who is over 65 inches tall. Does the law of average relate to the answer you give?

  Concept of probabilities

Be sure to include information about how you would use the concept of probabilities to apply to profiles for hiring more satisfied individuals.

  Calulate the critical value of ra

Calulate the critical value of ra. (f) Can you reject p = 0? 12.4 Moviegoer Spending ($) on Snacks Age (X) 30,50,34,12,37,33,36,26,18,46. Spent (Y) 2.85,6.50,1.50,6.35,6.20,6.75,3.60,6.10,8.35,4.35.'

  Dependent-independent samples

A group of sheep, infested with tapeworms, are randomly divided into two groups as follows. Each sheep is assigned a number (1 through 20) and then 10 numbers

  Find probability that if bags are selected have more weight

Normally distributed with a mean of 113 grams and a standard deviation of 5.4 grams. Find the probability that if 7 bags are randomly selected, their mean weight exceeds 114 grams.

  Scatter diagrams-linear correlation

How much should a healthy shetland pony weigh? Let X be the age of the ponies in months and y be the average weight of the ponies, in kilograms.

  Calculate the probability of getting heads

A biased coin with probability of head being .6 is tossed 12 times. What is the probability that number of head would more than 4 but less than or equal to 10.

  Dutch book argument for first axiom of probability

What is Dutch book argument for the first axiom of probability (the one that says that the probability of a sentence is never less than 0 or more than 1)?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd