In a survey, 22 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $38 and standard deviation of $10. Find the MARGIN OF ERROR at a 80% confidence level. Give your answer to two decimal places.

Q: In a survey, 18 people were asked how much they spent on their child's last birthday gift. The…

A: It is given that:Confidence coefficient: Sample size: Sample mean: Sample standard deviation:

Q: In a survey, 31 people were asked how much they spent on their child's last birthday gift. The…

A: Sample size, n = 31Mean = 48Standard deviation = 8

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Answer: - A bell shaped with mean μ = $48  ans standard deviation σ = $8.                The sample…

Q: A random sample of 45 cars in the drive-thru of a popular fast food restaurant revealed an average…

A: given that,population standard deviation, σ =4.89sample mean, x =17.79size (n)=45

Q: Find the margin of error at a 90% confidence level.

A:

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 11 people were asked how much they spent on their child's last birthday gift. The…

A: We have to find margin of error

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 12 people were asked how much they spent on their child's last birthday gift. The…

A: We have given that,  Sample mean (x̄) = $ 34, standard deviation (s)= $ 5, sample size (n) = 12 and…

Q: In a survey, 26 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A: Given: n=28 standard deviation s = $5 confidence level = 98%

Q: In a survey, 25 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 10 people were asked how much they spent on their child's last birthday gift. The…

A: Given data, n=10 x=35 s=4 c=99%

Q: In a survey, 13 people were asked how much they spent on their child's last birthday gift. The…

A: The result of the survey is roughly bell-shaped. So, we assume that the population is approximately…

Q: In a survey, 27 people were asked how much they spent on their child's last birthday gift. The…

A: Since the population standard deviation is unknown, t distribution can be used for the computation…

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Given that,The sample size  is 17.The sample mean  is $47.The sample standard deviation  is $3. The…

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…

Q: In a survey, 21 people were asked how much they spent on their child's last birthday gift. The…

A: we have given that  sample size n=21  ,xbar=30.9 ,s=12.7 margin of error= E = tcritical . s/sqrt (n)

Q: In a survey, 30 people were asked how much they spent on their child's last birthday gift. The…

A: given data,  bell- shaped distributionμ=33σ=2n=30CI=0.99α=1-0.99=0.01 margin of error for the data=?

Q: In a survey, 15 people were asked how much they spent on their child's last birthday gift. The…

A: A confidence interval is a range of values, we calculate using the sample statistics, in which we…

Q: na survey, 29 people were asked how much they spent on th vere roughly bell-shaped with a mean of…

A:

Q: In a survey, 31 people were asked how much they spent on their child's last birthday gift. The…

A: Given: σ = $ 2  n = 31

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Here,  Total number of samples , n = 17 Mean, µ = 41 Standard Deviation, σ = 4 Confidence level =…

Q: In a survey, 18 people were asked how much they spent on their child's last birthday gift. The…

A: Given  The results were roughly bell-shaped with a mean of $37 and standard deviation of $3 Sample…

Q: In a survey, 15 people were asked how much they spent on their child's last birthday gift. The…

A: given data  n = 15x¯ = 39s = 980% ci for μ. find ME = ?

Q: Suppose that seven hundred twenty-five residents were randomly selected and asked whether they have…

A: The objective is to find out the probability that the resident is a male or has covid vaccine…

Q: In a survey, 13 people were asked how much they spent on their child's last birthday gift. The…

A: Given, Sample size, n = 13 Sample mean = 44 Sample standard deviation, s = 10 Confidence level = 80%…

Q: In a survey, 30 people were asked how much they spent on their child's last birthday gift. The…

A: We have given that,  Sample mean (x̄) = $ 44, standard deviation (s) = $ 10, sample size (n) = 30…

Q: In a survey, 23 people were asked how much they spent on their child's last birthday gift. The…

A: Since population standard deviation is unknown, use t-distribution to find t-critical value. Find…

Q: In a survey, 15 people were asked how much they spent on their child's last birthday gift. The…

A: Solution: From the given information, S=2 and n=15. The confidence level is 0.98.

Q: In a survey, 16 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 11 people were asked how much they spent on their child's last birthday gift. The…

A: The summary of statistics is,

Q: In a survey, 28 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: survey, 16 people were asked how much they spent on their child's last birthday gift. The results…

A:

Q: In a survey, 20 people were asked how much they spent on their child's last birthday gift. The…

A: Given that  Sample size n =20 Sample mean=37 Standard deviation =7

Q: In a survey, 30 people were asked how much they spent on their child's last birthday gift. The…

A:

Q: In a survey, 27 people were asked how much they spent on their child's last birthday gift. The…

A: The mean is $36 and the standard deviation is $6.

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Given that: Sample size=n=17 Sample mean=x¯=41Standard deviation=s=999% confidence level, i.e,…

Q: a survey, 27 people were asked how much they spent on their child's last birthday gift. The results…

A: Given: Sample size=n=27Mean=x¯=31Sample standard deviation=s=8α=0.01

Q: In a survey, 17 people were asked how much they spent on their child's last birthday gift. The…

A: Given: Sample size,  n=17 Mean,  μ=$30 Standard deviation, s=$10 Confidence level =90% Concept:…

Q: In a survey, 12 people were asked how much they spent on their child's last birthday gift. The…

A: Since population standard deviation is unknown, Use t-distribution to find t-critical value. Find…

Q: The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances…

A:

Q: In a survey, 30 people were asked how much they spent on their child's last birthday gift. The…

A: Given ,Sample size n = 30Sample mean x = 36Sample standard deviation (s0 =2d.F = n-1dF = 30-1 =…