In a survey, 30 people were asked how much they spent on their child's last birthday gift. The results were roughly bell-shaped with a mean of $36 and standard deviation of $2. Find the margin of error at a 95% confidence level. Give your answer to two decimal places.

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, 29 people were asked how much they spent on their child's last birthday gift. The…

A: Givensample size(n)=29mean(x¯)=47standard deviation(s)=2α=1-0.95=0.05α2=0.025Degrees of…

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

A:

Q: A researcher measures the amount of food consumed by each dog in her lab. She finds that the mean…

A: It is given that mean amount of food is 12 oz and number of dogs is 16. The sum of squared…

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: A successful basketball player has a height of 6 feet 8 ​inches, or 203 cm. Based on statistics from…

A: Consider X is a random variable defined as the height of a successful basketball player.The provided…

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

A: We have given that  Sample size=n=23 Mean=mu=37 Standard deviation=S=4 90% confidence level

Q: The average and standard deviation for ACT scores are 20 and 3 respectively. average and standard…

A:

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

A:

Q: In a survey, 22 people were asked how much they spent on their child's last birthday gift. The…

A: Solution: From the given information, confidence level is 0.80, σ=$10 and n=22.

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, 24 people were asked how much they spent on their child's last birthday gift. The…

A: The sample size is n=24 mean is =39 the standard deviation is =3.The confidence level is 95%, then…

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: On a nationwide math test, the mean was 72 and the standard deviation was 7. If Roberto scored 90,…

A: Given that, Mean = 72 Standard deviation = 7

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

A:

Q: In a survey, 11 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, 20 people were asked how much they spent on their child's last birthday gift. The…

A:

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

A:

Q: In a survey, 29 people were asked how much they spent on their child's last birthday gift. The…

A: Given that, n=29 mean=$50 S.D=$8

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

A: Givensample size(n)=21Mean(x)=34standard deviation(s)=6confidence level=80%