In a survey, 32 people were asked how much they spent on their child's last birthday gift. The results wereroughly bell-shaped with a mean of $49 and standard deviation of $7. Construct a confidence interval at a 98%confidence level.Please NOTE that the answer here has to be given in the form below sample mean +- margin of error, not theusual final answer bounds.> Next QuestionMacBook Pro@#2$&2367WETYSDGJこの* 00

Given: Sample size n=32 Sample mean xbar=$49 Standard deviations (σ)=$7 To find 98% confidence…

Answered: In a survey, 32 people were asked how…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a survey, 23 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $42 and standard deviation of $8. Construct a confidence interval at a 98% confidence level. Give your answers to one decimal place. Interpret your confidence interval in the context of this problem.
In a survey, 16 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $49 and standard deviation of $13. Construct a confidence interval at a 99% confidence level.Give your answers to one decimal place.
how do i calculate d, f and h ch box of Healthy Crunch breakfast cereal contains a coupon entitling you to a free package of garden seeds. At the Healthy Crunch home office, they use the weight of incoming mail to determine how many of their employees are to be assigned to collecting coupons and mailing out seed packages on a given day. (Healthy Crunch has a policy of answering all its mail on the day it is received.) Let x = weight of incoming mail and y = number of employees required to process the mail in one working day. A random sample of 8 days gave the following data. x (lb) 13 23 18 6 12 18 23 25 y (Number of employees) 5 11 10 5 8 14 13 16 In this setting we have Σx = 138, Σy = 82, Σx2 = 2680, Σy2 = 956, and Σxy = 1575. (a) Find x, y, b, and the equation of the least-squares line. (Round your x and y to two decimal places. Round your least-squares estimates to four decimal places.) x = y = b = ŷ = + x (b) Draw a scatter diagram displaying…
In a survey, 27 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $42.6 and standard deviation of $17.5. Estimate how much a typical parent would spend on their child's birthday gift (use a 99% confidence level). Give your answers to 3 decimal places.
In a survey, 13 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $35 and standard deviation of $16. Construct a confidence interval at a 90% confidence level. Give your answers to one decimal place. please gave me the right answer stop wasting my chances to ask
In a survey, 39 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $53 and standard deviation of $7. Calculate, state, and interpret a 95% confidence interval to estimate the mean amount of money parents spend on their child's birthday gift. Round to the nearest 100th where necessary.
A researcher wants to estimate the mean amount of money spentonline by consumers in a particular market. She samples 16 consumers and finds that they spend on average $854 online with a standard deviation of $152. Construct a 99% confidence interval estimate of the mean amount of money spent online. Write a statement that correctly interprets the confidence interval.
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In a survey, 18 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $41 and standard deviation of $7. Construct a confidence interval at a 80% confidence level. Give your answers to one decimal place. Interpret your confidence interval in the context of this problem.
In a survey, 15 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $47 and standard deviation of $10. Construct a confidence interval at a 95% confidence level.Give your answers to one decimal place.
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