An insurance compnay wants to know if the number of accidents is equally distributed between the...

An insurance compnay wants to know if the number of accidents is equally distributed between the days of the week. One executive believes they are equally distributed. A random sample is selected. At alpha = 0.05 is this assumption true

Day ----------mon-- tues-- wed --thur-- fri-- sat-- sun
# accidents --28---- 32---- 15----- 14--- 38--- 43--- 19

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

1. The Allstate Insurance Company determined the average number of years between accidents for drivers in...

1. The Allstate Insurance Company determined the average number of years between accidents for drivers in a large number of U.S. cities. The ‘Accidents’ sheet in the ‘Lab12 Chp 10n11 S20’ spreadsheet contains the results for 32 randomly selected cities east of the Mississippi River and 32 randomly selected cities west of the Mississippi River. (a) Are the samples independent or paired? (b) Consider constructing a 90% confidence interval for the difference in average number of years between accidents of...

A fund manager wants to know if it is equally likely that the Nasdaq Average will...

A fund manager wants to know if it is equally likely that the Nasdaq Average will go up each day of the week. For each day of the week, the fund manager observes the following number of days when the Nasdaq Average goes up. Day of the Week Observed Monday 192 Tuesday 189 Wednesday 202 Thursday 199 Friday 218 For the goodness-of-fit test, the null and alternative hypotheses are ________. H0: p1 = p2 = p3 = p4 = 1/4,...

2. The manager of a restaurant wants to know if there is a correlation between the...

2. The manager of a restaurant wants to know if there is a correlation between the amount of a customer’s bill and the percent that they tip. In other words, as people spend more money do they tend to tip at different rates? With data from a random sample of 157 bills, he used StatKey to construct a 95% bootstrap confidence interval of [0.018, 0.292] for r. [24 points] A. What if the manager wanted to do a hypothesis test...

Table below shows a relationship between the temperature and number of traffic accidents in small town...

Table below shows a relationship between the temperature and number of traffic accidents in small town for a sample of 7 different days. [4+2+4+2=12pts] Temperature (in Celsius degrees )... x 32 13 24 20 10 4 36 # of traffic accidents ...y 7 4 9 11 3 5 8 Find a correlation coefficient r, round it to 4 decimal places. Describe the direction and strength of this association: ………………………… Find the equation of regression line. Sketch it graphically, find/display values of both...

Question 7 In the last question, an insurance company wants to know if the mean area...

Question 7 In the last question, an insurance company wants to know if the mean area of homes built in 2010 is less than that of homes built in 2009. What is the conclusion at the 0.05 level of significance? Question 7 options: There is evidence to conclude that the mean area of homes built in 2010 is less than that of homes built in 2009 There is not enough evidence to conclude that the mean area of homes built...

Scott wants to know if there is a relationship between attendance at a particular class and...

Scott wants to know if there is a relationship between attendance at a particular class and whether students pass or fail the final exam. He notes whether each of his 30 students were present or absent at the particular class of interest, and finds that 21 of the students were present. He then also notes whether each student passes or fails the final exam. Of the 21 students who were present at the class of interest, 18 of them passed...

A child wants to know if there is a difference between the two colonies that he...

A child wants to know if there is a difference between the two colonies that he is breeding. The kid samples his primary carpenter ants and receives the following 5 measurements: 5mm 8mm 7.3mm 6.8mm 9mm. The kid has a secondary, backup carpenter ant hive. They take the following 6 measurements: 3mm 6.2mm 7mm 11.3mm 6.1mm 6.5mm What is the null hypothesis? Compute a 95% confidence interval for this situation. Get the t-value and p-value for this situation What does...

A child wants to know if there is a difference between the two colonies that he...

The mean number of fatal accidents between Mile markers 0 and 40 is 5 per year....

The mean number of fatal accidents between Mile markers 0 and 40 is 5 per year. What is the probability there are a) exactly 3 fatalities b) less than 5 fatalities, c) 4 or less fatalities d) greater than 4 fatalities, greater e) Between 1 and 4 fatalities (10 points) a b c d e

A head librarian supervises a number of libraries in a large county. He wants to know...

A head librarian supervises a number of libraries in a large county. He wants to know if full-time library workers and part-time library workers re-shelve books at the same rate. So, he checks the records of 35 full-time library workers and finds that they re-shelve an average of 190 books per hour with a standard deviation of 18.3 books per hour. The records of 35 part-time library show that they re-shelve an average of 180 books per hour with a...

Subjects