(a) Listening to news, suppose you suddenly learn about Omicron outbreak in your area and taking preventive measures for the upcoming pandemic; what would be the type II error? The type II error is ……………………………………………………………………………………………. (b) From a previous Statistics I class midterm exam; out of 25 marks, the mean was 19.17 and the standard deviation was 2.93. If the lowest score is 2.99 standard deviation smaller than the mean; how much is it? The lowest score is …………………………………………………………… (c) To determine the average age of its customers, a large online restaurant looks a random sample of 49 customers and found x̅ = 30 and standard deviation is 10. To construct the confidence interval at 95%, write the margin of error in symbolic form only. Do not find its value. The margin of error is …………………………………………… (d) Five hundred people were asked whether gun laws should be more stringent. Three hundred and fifty said "yes," and 150 said "no". Write the value and symbol of the point estimate of the proportion in the population who will respond "yes". . ………………………… (e) In a poll of 45 students randomly sampled from Statistics I classes, 60.5% answered “Agree” to the statement, “Statistics will be useful and relevant in my chosen career”. Develop the null hypothesis to test more than 50% of the students from Statistics I classes at Foundation Course answered “Agree”. Write the null hypothesis in symbolic form only. Ho: ………………………
(a) Listening to news, suppose you suddenly learn about Omicron outbreak in your area and taking
preventive measures for the upcoming pandemic; what would be the type II error?
The type II error is
…………………………………………………………………………………………….
(b) From a previous Statistics I class midterm exam; out of 25 marks, the mean was 19.17 and the
standard deviation was 2.93. If the lowest score is 2.99 standard deviation smaller than the
mean; how much is it?
The lowest score is
……………………………………………………………
(c) To determine the average age of its customers, a large online restaurant looks a random sample
of 49 customers and found x̅ = 30 and standard deviation is 10. To construct the confidence
interval at 95%, write the margin of error in symbolic form only. Do not find its value.
The margin of error is
……………………………………………
(d) Five hundred people were asked whether gun laws should be more stringent. Three hundred and
fifty said "yes," and 150 said "no". Write the value and symbol of the point estimate of the
proportion in the population who will respond "yes".
. …………………………
(e) In a poll of 45 students randomly sampled from Statistics I classes, 60.5% answered “Agree” to
the statement, “Statistics will be useful and relevant in my chosen career”. Develop the null
hypothesis to test more than 50% of the students from Statistics I classes at Foundation Course
answered “Agree”. Write the null hypothesis in symbolic form only.
Ho: ………………………
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 1 images
